<?xml version="1.0" encoding="UTF-8" standalone="no"?><metadata>
    	
    <idinfo>
        		
        <citation>
            			
            <citeinfo>
                				
                <origin>Minnesota Population Center</origin>
                				
                <pubdate>2006</pubdate>
                				
                <title>Historic Counties for the 1870 Census of Population</title>
                				
                <geoform Sync="TRUE">vector digital data</geoform>
                				
                <pubinfo>
                    					
                    <pubplace>Minneapolis, Minnesota</pubplace>
                    					
                    <publish>Minnesota Population Center</publish>
                    				
                </pubinfo>
                				
                <onlink>http://www.nhgis.org</onlink>
                				
                <lworkcit>
				</lworkcit>
                				
                <ftname Sync="TRUE">US_county_1870</ftname>
            </citeinfo>
            		
        </citation>
        		
        <descript>
            			
            <abstract>This boundary file contains historic county boundaries for which the U.S. Census Bureau tabulated data and was produced by the Minnesota Population Center as part of the National Historical Geographic Information System (NHGIS) project. The NHGIS is an National Science Foundation-sponsored project (Grant No. BCS0094908) to create a digital spatial-temporal database of all available historical US aggregate census materials.  The available shapefiles on the NHGIS site represent version 1.0 of historical US county boundary files for the 1790 to 2000 censuses. These electronic county boundary files were created by referencing a wide variety of sources and considerable care was taken during their production. U.S. Census Bureau TIGER/Line Census 2000 files provided the 1990 and 2000 county boundaries and the roads, hydrography, and public land survey lines required to construct historic county boundaries.  Locations of historic county boundaries were derived from William Thorndale and William Dollarhide's Map Guide to the U.S. Federal Censuses (1987), various volumes of John H. Long's Atlas of Historical County Boundaries, the Atlas of Historical County Boundaries website (http://www.newberry.org/ahcbp/), and other state-specific sources.  TIGER/Line spatial features that corresponded to boundaries in these sources were used to construct the proper historic boundaries.   When a TIGER/Line feature was not available, we digitized the historic boundary from one of the map sources.  Aggregate data from Michael Haines' Historical Demographic, Economic and Social Data: The United States, 1790-1970 (2001) and Richard Forstall's Population of States and Counties of the United States: 1790 to 1990 (1996) were used to determine whether a county was enumerated during a given census. If a county was not enumerated, notes from those sources were used to attach the county in question to the county with which it was enumerated. If a county was not enumerated and the notes provide no details, the county was considered 'unattached' and it was merged with other unattached land within the state or territory.</abstract>
            			
            <purpose>These data are based upon work supported by the National Science Foundation under Grant No. BCS0094908 - in infrastructure grant provided for the social sciences. Its purpose is twofold. First, the NHGIS created and freely distributes a database incorporating all available aggregate census information for the United States between 1790 and 2000. The database contains information for a wide variety of statistical (blocks, block groups, census tracts, metropolitan statistical areas) and administrative units (places, minor civil divisions, counties, states).  Second, the NHGIS produced and freely distributes boundary files for small areas (census tracts and counties) in the United States. Boundary files for tracts are available for the 1910-2000 censuses, and boundary files for counties are available for the 1790-2000 censuses. The boundaries contained in this file do not necessarily represent legal county boundaries. Instead, they represent the county boundaries over which the U.S. Census Bureau tabulated and published data.</purpose>
            			
            <supplinf>Counties are the primary legal subdivisions of most states and territories. Louisiana uses the term parish when referring to counties.  Alaska has no counties; instead, the equivalents to counties are census areas, boroughs, city and boroughs, and municipalities.  The U.S. Census Bureau and the state of Alaska jointly delineate the state's county equivalents.  The District of Columbia has to legal subdivisions; thus, the Census Bureau treats the entire entity as a county.  Four states (Maryland, Missouri, Nevada, and Virginia) have independent cities.  These cities are independent of any county and thus serve as county equivalents in their respective states.    The NHGIS assigned a four-digit code to every county and county equivalent within a state or territory.  The codes are assigned in alphabetical order, except for independent cities, which are assigned codes higher than counties. FIPS codes were used to uniquely identify a county within a state or territory, except for historical counties that were never assigned FIPS codes. For those historical counties, the NHGIS assigned a new code based on the alphabetical order of all counties a state or territory ever contained.</supplinf>
            			
            <langdata Sync="TRUE">en</langdata>
        </descript>
        		
        <timeperd>
            			
            <timeinfo>
                				
                <sngdate>
                    					
                    <caldate>1870</caldate>
                    				
                </sngdate>
                				
                <sngdate>
                    					
                    <caldate>1870</caldate>
                    				
                </sngdate>
                				
                <sngdate>
                    					
                    <caldate>1870</caldate>
                    				
                </sngdate>
                				
                <sngdate>
                    					
                    <caldate>1870</caldate>
                    				
                </sngdate>
                				
                <sngdate>
                    					
                    <caldate>1870</caldate>
                    				
                </sngdate>
                				
                <sngdate>
                    					
                    <caldate>1870</caldate>
                    				
                </sngdate>
                				
                <sngdate>
                    					
                    <caldate>1870</caldate>
                    				
                </sngdate>
                				
                <sngdate>
                    					
                    <caldate>1870</caldate>
                    				
                </sngdate>
                				
                <sngdate>
                    					
                    <caldate>1870</caldate>
                    				
                </sngdate>
                				
                <sngdate>
                    					
                    <caldate>1870</caldate>
                    				
                </sngdate>
                			
            </timeinfo>
            			
            <current>publication date</current>
            		
        </timeperd>
        		
        <status>
            			
            <progress>In work</progress>
            			
            <update>As work is completed</update>
            		
        </status>
        		
        <spdom>
            			
            <bounding>
                				
                <westbc Sync="TRUE">-127.887285</westbc>
                				
                <eastbc Sync="TRUE">-65.345793</eastbc>
                				
                <northbc Sync="TRUE">51.604785</northbc>
                				
                <southbc Sync="TRUE">22.871934</southbc>
                			
            </bounding>
            			
            <lboundng>
                <leftbc Sync="TRUE">-2356113.743199</leftbc>
                <rightbc Sync="TRUE">2258224.796357</rightbc>
                <bottombc Sync="TRUE">-1337508.077280</bottombc>
                <topbc Sync="TRUE">1565781.659379</topbc>
            </lboundng>
        </spdom>
        		
        <keywords>
            			
            <theme>
                				
                <themekt>None</themekt>
                				
                <themekey>historical</themekey>
                				
                <themekey>census of population and housing</themekey>
                				
                <themekey>counties</themekey>
                				
                <themekey>county equivalents</themekey>
                				
                <themekey>census boundaries</themekey>
                				
                <themekey>census geography</themekey>
                				
                <themekey>census data</themekey>
                				
                <themekey>population</themekey>
                				
                <themekey>housing</themekey>
                				
                <themekey>county</themekey>
                				
                <themekey>borough</themekey>
                				
                <themekey>independent city</themekey>
                				
                <themekey>census area</themekey>
                				
                <themekey>parish</themekey>
                			
            </theme>
            			
            <place>
                				
                <placekt>None</placekt>
                			
            </place>
            			
            <temporal>
                				
                <tempkt>None</tempkt>
                			
            </temporal>
            		
        </keywords>
        		
        <accconst>All persons are granted a limited license to use and distribute this documentation and the available data, subject to the use constraints listed below.</accconst>
        		
        <useconst>This dataset was produced with an intended application at the state/territory, regional or national level. Appropriate uses include thematic mapping of census data and spatial analysis of census data.  These unaltered data may be redistributed by a third party.   If these data are altered or incorporated into another dataset, they are not to be redistributed without also: altering the name of the dataset, including a Content Standars for Digital Geospatial Metadata (FGDC-STD-001-1998) compliant metadata file that describes the dataset and reflects the alteration steps that makes the new dataset different from this one, and citing this dataset in the metadata as a source for the altered dataset using the source citation specified below.  If these digital data are used in the production of a report or in the compilation of a standalone printed map, then this dataset is to be cited in the report or on the map using the source citation specified below.  The following source citation should be used when citing this dataset: John S. Adams, William C. Block, Mark Lindberg, Robert McMaster, Steven Ruggles, and Wendy Thomas, National Historical Geographic Information System: Pre-release Version 0.1, Minneapolis: Minnesota Population Center, University of Minnesota, 2004.  No fee may be charged for use or distribution. Publications and research reports based on the database must cite it appropriately. Users are requested to send a copy of any publications, research reports, or educational material making use of the data or documentation. Printed matter should be sent to:  NHGIS  Minnesota Population Center University of Minnesota 50 Willey Hall 225 19th Avenue South Minneapolis, MN 55455</useconst>
        		
        <ptcontac>
            			
            <cntinfo>
                				
                <cntperp>
                    					
                    <cntper>Petra Noble</cntper>
                    					
                    <cntorg>Minnesota Population Center</cntorg>
                    				
                </cntperp>
                				
                <cntpos>Research Fellow</cntpos>
                				
                <cntaddr>
                    					
                    <addrtype>physical address</addrtype>
                    					
                    <address>50 Willey Hall</address>
                    					
                    <address>225 19th Avenue South</address>
                    					
                    <city>Minneapolis</city>
                    					
                    <state>Minnesota</state>
                    					
                    <postal>55455</postal>
                    					
                    <country>USA</country>
                    				
                </cntaddr>
                				
                <cntvoice>612-625-7375</cntvoice>
                				
                <cntemail>nhgis@pop.umn.edu</cntemail>
                			
            </cntinfo>
            		
        </ptcontac>
        		
        <datacred>National Science Foundation Grant No. BCS0094908</datacred>
        		
        <native Sync="FALSE">ESRI ArcCatalog 9.2.0.1324</native>
        		
        <natvform Sync="TRUE">Shapefile</natvform>
    </idinfo>
    	
    <dataqual>
        		
        <attracc>
            			
            <attraccr>All county codes were checked against codes in the available aggregate data to ensure accuracy and consistency. The boundary file may contain more or fewer counties than the aggregate data file. Sources for the boundary files sometimes depicted counties that contained no population; thus, they have no record in the aggregate data file.  Sometimes, the aggregate data files contain records for county equivalents that are not mappable (e.g., military forts).  Also, the boundary file sometimes contains an "unattached" county. This section of the state was not counted by the U.S. Census Bureau, but it has been included in order to depict the correct state/territory outline.</attraccr>
            		
        </attracc>
        		
        <logic>All spatial data have been reviewed to assure topological consistency and completeness. All polygons close and do not overlap. No voids exist within polygons. ArcGIS topology features classes were used to identify and fix topological errors (e.g., overlaps, voids, missing polygons) in the county boundary datasets. The ArcGIS topology rules used to ensure logical consistency were 'Must not overlap' and 'Must be covered by'.</logic>
        		
        <complete>Version 1.0 of the county boundary files contains counties and county equivalents.  Most counties, although not all, have a matching record in the aggregate data files.  Counties without a matching record were denoted on source materials as having "no population".  We still made those counties because we had a geographic representation of it.  Additionally, some records in the aggregate data files could not be mapped because they represent point features (e.g., military forts) - NHGIS boundary files are only composed of polygon features. Version 1.0 boundary files have not been generalized, and counties containing parts of the following bodies of water do not have historically accurate coastlines: the Great Lakes, Atlantic Ocean, Pacific Ocean, and the Gulf of Mexico.  No counties overlap, no voids exist within counties, and any polygon belongs to one and only one county. Every county has a FIPS-like code (GISJOIN) that uniquely identifies it.  The aggregate data contains a matching code (GISJOIN) so that the files can be easily joined together.</complete>
        		
        <posacc>
            			
            <horizpa>
                				
                <horizpar>The horizontal positional accuracy of the source data (U.S. Census Bureau TIGER/Line 2000 files) can be found at  http://www.census.gov/geo/www/tlmetadata/tl2kmeta.txt. To create historic county boundaries, we used existing TIGER lines whereever possible. When no TIGER line existed, we digitized new linework from scanned and rectified Thorndale and Dollarhide (1987) maps for John H. Long (various) maps. These historic county boundaries do not represent legal boundaries and should only be used for thematic mapping and statistical analysis.</horizpar>
                			
            </horizpa>
            		
        </posacc>
        		
        <lineage>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>William Thorndale and William Dollarhide</origin>
                        						
                        <pubdate>1987</pubdate>
                        						
                        <title>Map Guide to the U.S. Federal Censuses, 1790-1920</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>Baltimore, MD</pubplace>
                            							
                            <publish>Genealogical Publishing Co., Inc.</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>Thorndale and Dollarhide 1987</srccitea>
                				
                <srccontr>Depicts county boundaries used in 1790-1920 census</srccontr>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Richard Forstall</origin>
                        						
                        <pubdate>1966</pubdate>
                        						
                        <title>Population of States and Counties of the United States: 1790 to 1990</title>
                        						
                        <pubinfo>
                            							
                            <pubplace>Washington, DC</pubplace>
                            							
                            <publish>U.S. Department of Commerce, Bureau of the Census, Population Division</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>Forstall 1996</srccitea>
                				
                <srccontr>Lists population for each county enumerated</srccontr>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>U.S. Census Bureau</origin>
                        						
                        <pubdate>2001</pubdate>
                        						
                        <title>Census 2000 TIGER/Line files [machine-readable data file]</title>
                        						
                        <geoform>vector digital file</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>Washington, DC</pubplace>
                            							
                            <publish>U.S. Department of Commerce, Bureau of the Census, Geography Division</publish>
                            						
                        </pubinfo>
                        						
                        <onlink>http://www.census.gov/geo/www/tiger/index.html</onlink>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>100000</srcscale>
                				
                <typesrc>online</typesrc>
                				
                <srccitea>U.S. Census Bureau 2001b</srccitea>
                				
                <srccontr>Base linework for the historic counties</srccontr>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>John S. Adams, William C. Block, Mark Lindberg, Robert McMaster, Steven Ruggles, and Wendy Thomas</origin>
                        						
                        <pubdate>2004</pubdate>
                        						
                        <title>National Historical Geographic Information System: Pre-release Version 0.1</title>
                        						
                        <geoform>vector digital file</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>Minneapolis, MN</pubplace>
                            							
                            <publish>Minnesota Population Center, University of Minnesota</publish>
                            						
                        </pubinfo>
                        						
                        <onlink>http://www.nhgis.org</onlink>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>100000</srcscale>
                				
                <typesrc>online</typesrc>
                				
                <srccitea>Adams, et al. 2004</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Peggy Tuck Sinko (comp.), Laura Rico (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>2004</pubdate>
                        						
                        <title>Wyoming Historical Counties</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>Chicago</pubplace>
                            							
                            <publish>The Newberry Library</publish>
                            						
                        </pubinfo>
                        						
                        <onlink>http://www.newberry.org/ahcbp/ie/index.html</onlink>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>online</typesrc>
                				
                <srccitea>Sinko, Rico and Long 2004e</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Gordon DenBoer (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>1995</pubdate>
                        						
                        <title>Atlas of Historical County Boundaries: Kentucky</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>New York</pubplace>
                            							
                            <publish>Charles Scribner's Sons</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>DenBoer and Long 1995</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Gordon DenBoer (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>2000</pubdate>
                        						
                        <title>Atlas of Historical County Boundaries: Minnesota</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>New York</pubplace>
                            							
                            <publish>Charles Scribner's Sons</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>DenBoer and Long 2000</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Gordon DenBoer (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>1998</pubdate>
                        						
                        <title>Atlas of Historical County Boundaries: North Carolina</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>New York</pubplace>
                            							
                            <publish>Charles Scribner's Sons</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>DenBoer and Long 1998b</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Gordon DenBoer (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>1996</pubdate>
                        						
                        <title>Atlas of Historical County Boundaries: Pennsylvania</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>New York</pubplace>
                            							
                            <publish>Charles Scribner's Sons</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>DenBoer and Long 1996</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Gordon DenBoer (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>1997</pubdate>
                        						
                        <title>Atlas of Historical County Boundaries: Wisconsin</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>New York</pubplace>
                            							
                            <publish>Charles Scribner's Sons</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>DenBoer and Long 1997b</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Gordon DenBoer (comp.), John H. Long (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>1994</pubdate>
                        						
                        <title>Atlas of Historical County Boundaries: Connecticut, Maine, Massachusette, Rhode Island</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>New York</pubplace>
                            							
                            <publish>Simon and Schuster</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>DenBoer, Long and Long 1994</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Gordon DenBoer (comp.), Kathryn Ford Thorne (comp.), and John H. Long (ed.)</origin>
                        						
                        <pubdate>1993</pubdate>
                        						
                        <title>Atlas of Historical County Boundaries: South Carolina</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>New York</pubplace>
                            							
                            <publish>Simon and Schuster</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>DenBoer, Thorne, and Long 1993</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Gordon DenBoer (comp.), George E. Goodridge, Jr. (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>1993</pubdate>
                        						
                        <title>Atlas of Historical County Boundaries: New Hampshire, Vermont</title>
                        						
                        <edition>map</edition>
                        						
                        <pubinfo>
                            							
                            <pubplace>New York</pubplace>
                            							
                            <publish>Simon and Schuster</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>DenBoer, Goodridge Jr., and Long 1993</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>John H. Long (comp. and ed.)</origin>
                        						
                        <pubdate>1996</pubdate>
                        						
                        <title>Atlas of Historical Boundaries: Delaware, Maryland, District of Columbia</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>New York</pubplace>
                            							
                            <publish>Charles Scribner's Sons</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>Long 1996</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Peggy Tuck Sinko (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>1996</pubdate>
                        						
                        <title>Atlas of Historical County Boundaries: Alabama</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>New York</pubplace>
                            							
                            <publish>Charles Scribner's Sons</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>Sinko and Long 1996a</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Peggy Tuck Sinko (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>1996</pubdate>
                        						
                        <title>Atlas of Historical County Boundaries: Indiana</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>New York</pubplace>
                            							
                            <publish>Charles Scribner's Sons</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>Sinko and Long 1996b</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Peggy Tuck Sinko (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>1997</pubdate>
                        						
                        <title>Atlas of Historical County Boundaries: Michigan</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>New York</pubplace>
                            							
                            <publish>Charles Scribner's Sons</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>Sinko and Long 1997</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Peggy Tuck Sinko (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>1993</pubdate>
                        						
                        <title>Atlas of Historical County Boundaries: Mississippi</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>New York</pubplace>
                            							
                            <publish>Simon and Schuster</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>Sinko and Long 1993</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Peggy Tuck Sinko (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>1998</pubdate>
                        						
                        <title>Atlas of Historical County Boundaries: Ohio</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>New York</pubplace>
                            							
                            <publish>Charles Scribner's Sons</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>Sinko and Long 1998</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Peggy Tuck Sinko (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>2000</pubdate>
                        						
                        <title>Atlas of Historical County Boundaries: Tennessee</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>New York</pubplace>
                            							
                            <publish>Charles Scribner's Sons</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>Sinko and Long 2000</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Peggy Tuck Sinko (comp.), Kathryn Ford Thorne (comp.), and John H. Long (ed.)</origin>
                        						
                        <pubdate>1997</pubdate>
                        						
                        <title>Atlas of Historical County Boundaries: Florida</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>New York</pubplace>
                            							
                            <publish>Charles Scribner's Sons</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>Sinko, Thorne and Long 1997</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Kathryn Ford Thorne (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>1993</pubdate>
                        						
                        <title>Atlas of Historical County Boundaries: New York</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>New York</pubplace>
                            							
                            <publish>Simon and Schuster</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>Thorne and Long 1993</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Gordon DenBoer (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>1997</pubdate>
                        						
                        <title>Atlas of Historical County Boundaries: Illinois</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>New York</pubplace>
                            							
                            <publish>Charles Scribner's Sons</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>DenBoer and Long 1997a</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Gordon DenBoer (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>1998</pubdate>
                        						
                        <title>Atlas of Historical County Boundaries: Iowa</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>New York</pubplace>
                            							
                            <publish>Charles Scribner's Sons</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>DenBoer and Long 1998a</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Peggy Tuck Sinko (comp.), Laura Rico (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>2004</pubdate>
                        						
                        <title>Virginia Historical Counties</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>Chicago</pubplace>
                            							
                            <publish>The Newberry Library</publish>
                            						
                        </pubinfo>
                        						
                        <onlink>http://www.newberry.org/ahcbp/ie/index.html</onlink>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>online</typesrc>
                				
                <srccitea>Sinko, Rico and Long 2004b</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Peggy Tuck Sinko (comp.), Laura Rico (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>2004</pubdate>
                        						
                        <title>Montana Historical Counties</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>Chicago</pubplace>
                            							
                            <publish>The Newberry Library</publish>
                            						
                        </pubinfo>
                        						
                        <onlink>http://www.newberry.org/ahcbp/ie/index.html</onlink>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>online</typesrc>
                				
                <srccitea>Sinko, Rico and Long 2004d</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Peggy Tuck Sinko (comp.), Laura Rico (comp.) and John H. Long (ed.)</origin>
                        						
                        <pubdate>2004</pubdate>
                        						
                        <title>West Virginia Historical Counties</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>Chicago</pubplace>
                            							
                            <publish>The Newberry Library</publish>
                            						
                        </pubinfo>
                        						
                        <onlink>http://www.newberry.org/ahcbp/ie/index.html</onlink>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>online</typesrc>
                				
                <srccitea>Sinko, Rico and Long 2004c</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Sylvia Nimmo</origin>
                        						
                        <pubdate>1978</pubdate>
                        						
                        <title>Maps Showing the County Boundaries of Nebraska, 1854-1925</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>Papillion, NE</pubplace>
                            							
                            <publish>Sylvia Nimmo</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>Nimmo 1978</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>John H. Long (ed.) and Stephen L. Hansen (comp.)</origin>
                        						
                        <pubdate>1984</pubdate>
                        						
                        <title>Historical Atlas and Chronology of County Boundaries, 1788-1980, Volume 2: Illinois, Indiana, Ohio</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>Boston</pubplace>
                            							
                            <publish>G.K. Hall &amp; Co.</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>Long and Hansen 1984</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>John H. Long (ed. and comp.) and Hugo P. Leaming (comp.)</origin>
                        						
                        <pubdate>1984</pubdate>
                        						
                        <title>Historical Atlas and Chronology of County Boundaries, 1788-1980, Volume 3: Michigan, Wisconsin</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>Boston</pubplace>
                            							
                            <publish>G.K. Hall &amp; Co.</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>Long and Leaming 1984</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>John H. Long (ed.), Mark P. Donovan (comp.), and Jeffrey D. Siebert (comp.)</origin>
                        						
                        <pubdate>1984</pubdate>
                        						
                        <title>Historical Atlas and Chronology of County Boundaries, 1788-1980, Volume 5: Minnesota, North Dakota, South Dakota</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>Boston</pubplace>
                            							
                            <publish>G.K. Hall &amp; Co.</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>Long, Donovan and Siebert 1984</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>U.S. Census Bureau</origin>
                        						
                        <pubdate>1932</pubdate>
                        						
                        <title>Fifteenth Census of the United States: 1930. Population. Volume III</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>Washington, D.C.</pubplace>
                            							
                            <publish>U.S. Government Printing Office</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>U.S. Census Bureau 1932</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>U.S. Census Bureau</origin>
                        						
                        <pubdate>1943</pubdate>
                        						
                        <title>Sixteenth Census of the United States: 1940. Population. Volume II</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>Washington, D.C.</pubplace>
                            							
                            <publish>U.S. Government Printing Office</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>U.S. Census Bureau 1943</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>U.S. Census Bureau</origin>
                        						
                        <pubdate>1952</pubdate>
                        						
                        <title>Census of Population: 1950. Volume II. Characteristics of the Population</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>Washington, D.C.</pubplace>
                            							
                            <publish>U.S. Government Printing Office</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>U.S. Census Bureau 1952c</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>U.S. Census Bureau</origin>
                        						
                        <pubdate>1963</pubdate>
                        						
                        <title>Census of Population: 1960. Volume I. Characteristics of the Population</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>Washington, D.C.</pubplace>
                            							
                            <publish>U.S. Government Printing Office</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>U.S. Census Bureau 1963</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>U.S. Census Bureau</origin>
                        						
                        <pubdate>1973</pubdate>
                        						
                        <title>Census of Population: 1970. Volume I, Characteristics of the Population</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>Washington, D.C.</pubplace>
                            							
                            <publish>U.S. Government Printing Office</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>U.S. Census Bureau 1973</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>U.S. Census Bureau</origin>
                        						
                        <pubdate>1981</pubdate>
                        						
                        <title>1980 Census of Population: Volume I, Characteristics of the Population</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>Washington, D.C.</pubplace>
                            							
                            <publish>U.S. Government Printing Office</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>U.S. Census Bureau 1981</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>John H. Long (ed. and comp.) and Adele Hast (comp.)</origin>
                        						
                        <pubdate>1984</pubdate>
                        						
                        <title>Historical Atlas and Chronology of County Boundaries, 1788-1980, Volume 4: Iowa, Missouri</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>Boston</pubplace>
                            							
                            <publish>G.K. Hall &amp; Co.</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>Long and Hast 1984</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>John H. Long (ed.and comp.)</origin>
                        						
                        <pubdate>1984</pubdate>
                        						
                        <title>Historical Atlas and Chronology of County Boundaries, 1788-1980, Volume 1: Delaware, Maryland, New Jersey, Pennsylvania</title>
                        						
                        <geoform>map</geoform>
                        						
                        <pubinfo>
                            							
                            <pubplace>Boston</pubplace>
                            							
                            <publish>G.K. Hall &amp; Co.</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srcscale>various</srcscale>
                				
                <typesrc>paper</typesrc>
                				
                <srccitea>Long 1984</srccitea>
                			
            </srcinfo>
            			
            <srcinfo>
                				
                <srccite>
                    					
                    <citeinfo>
                        						
                        <origin>Michael Haines</origin>
                        						
                        <pubdate>2001</pubdate>
                        						
                        <title>Historical Demographic, Economic and Social Data: The United States, 1790-1970</title>
                        						
                        <pubinfo>
                            							
                            <pubplace>Ann Arbor, MI</pubplace>
                            							
                            <publish>Inter-University Consortium for Political and Social Research</publish>
                            						
                        </pubinfo>
                        					
                    </citeinfo>
                    				
                </srccite>
                				
                <srccitea>Haines 2001</srccitea>
                			
            </srcinfo>
            			
            <procstep>
                				
                <procdesc>These process steps describe, in general, the procedures used to construct the NHGIS' historical county boundaries. The production procedures vary depending on the available source materials. The base counties were derived from the U.S. Census Bureau's Census 2000 TIGER/Line files. Many historical boundaries were derived from linear features also available in the TIGER/Line files. Those boundaries not available in digital form were digitized from scanned, geo-referenced maps.</procdesc>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>Using a custom AML, generated a statewide polygon coverage containing a union of 1990 and 2000 counties from the statewide census tract coverage. The projection, units, and datum for this coverage were geographic (latitude/longitude), decimal degrees, and NAD 83.</procdesc>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>Using a custom AML, generated a statewide coverage containing two region subclasses. One subclass contained all linear hydrographic (water) features and the second contained all roads and non-visible boundaries. The projection, units, and datum for this coverage were geographic (latitude/longitude), decimal degrees, and NAD 83.</procdesc>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>Using ArcCatalog 9.0, created feature datasets for each state in an ArcSDE database. The projection, unit, and datum of the feature datasets were geographic (latitude/longitude), decimal degrees, and NAD 83. The feature dataset's geographic extent was derived from an existing feature dataset containing all the state's census tracts.</procdesc>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>Imported the county polygon coverage, the hydrographic lines, and the streets into the ArcSDE feature dataset as feature classes. ArcCatalog 9.0's import function was used.</procdesc>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>Registered every state's featured data as versioned so that NHGIS staff could edit the feature classes.</procdesc>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>The county polygon features classes were edited in ArcMap to create the historical county boundaries. Edits were based on the sources available for a given state.  Long (various) and Thorndale and Dollarhide (1987) were the main sources for historical boundaries.  Books depicting or describing historical county boundaries existed for some states, and these were used when available. First, the counties, water, and roads were loaded into ArcMap. Second, map topology was created for the county polygon feature class. Third, the roads or water features representing a historical boundary were selected. Fourth, the polygon or polygons that required editing were selected. Finally, the Construct Features option of the ArcMap topology toolbar was used to split the selected polygon(s) with the selected roads and/or water.  If a historical county boundary followed a feature not in the roads or water feature classes, the feature was digitized into the proper feature class.</procdesc>
                				
                <srcused>withheld</srcused>
                				
                <srcused>withheld</srcused>
                				
                <srcused>withheld</srcused>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>After all edits were complete, the state features datasets were copied from one ArcSDE instance to a second ArcSDE instance.</procdesc>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>A topology features class was created for each state. The county polygon feature class was the only feature class participating in the topology. The topology rules were "Must not overlap" and "Must not have gaps." ArcCatalog's Create New Topology was used.</procdesc>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>The topology feature class was used to find gaps and overlaps in the county polygon feature class. ArcMap's editing tools were then used to fix the errors.</procdesc>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>A unique ID was then assigned to every polygon in a county polygon feature class. The ID was a concatenation of the state FIPS code and the polygon OID.  Using the state FIPS code in the ID guaranteed that every polygon had a unique ID, even when appended together to make the entire country.</procdesc>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>Using historical census data acquired from Michael Haines, a database table was created for every state and territory in Microsoft Excel. The table contained a COUNTYSHAPE_ID for every census in which a county had data tabulated for it. The COUNTYSHAPE_ID was a concatenation of the county FIPS code and the census decade. The database table was saved as a comma-delimited file and imported into the ArcSDE database using a custom VBA script.</procdesc>
                				
                <srcused>withheld</srcused>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>Using a custom VBA script in ArcMap, a many-to-many relationship was established between county polygons and the database table containing the COUNTYSHAPE_ID. The polygons comprising a historical county were selected and "associated" to a row in the database table.</procdesc>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>After finishing the many-to-many relationships for the COUNTYSHAPE_IDs for a state or territory, a custom Python script was run to generate the counties for every census. Topology rules were established to detect holes and overlaps in a census' counties. The topology feature class was used to locate holes and overlaps. Custom ArcMap VBA tools were used to fix the "associations" between a county and the polygons comprising the county.  Individual polygons were deleted or added to an "association" in order to fix the topology error.  This step was repeated until all the topology errors in a state were eliminated.</procdesc>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>Checked the accuracy of historical county boundaries by comparing them to maps in Thorndale and Dollarhide (1987) or various John H. Long volumes.</procdesc>
                				
                <srcused>withheld</srcused>
                				
                <srcused>withheld</srcused>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>Projected each state feature dataset to USA Contiguous Albers Equal Area Conic projection, in meters and NAD83.  Alaska was projected to the Alaska Albers Equal Area Conic projection, and Hawaii was projected to the Hawaii Albers Equal Area Conic projection.</procdesc>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>Used the Integrate function (with a 2.0 meter cluster tolerance) in ArcCatalog to snap the state polygon feature classes to the state boundaries contained in a nationwide feature class. We did the Integrate so that we could append all states together to make a seamless nationwide feature class containing all counties.</procdesc>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>Using a custom Python script, extracted counties for each decade from the contiguous 48 states.</procdesc>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>Starting in 1790, we appended all extracted counties together to make a nationwide feature class, one for each decade (1790-2000).  We also created a topology feature class with the Must Not Overlap and Must Not Have Gaps rules to check for errors introduced by the append. Any errors were corrected and then this step was repeated.</procdesc>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>For each decade, we joined the attributes from Haines 2001 to the corresponding nationwide county feature class. This will provide users with the state and county codes and county names in the Haines 2001 data along with the state and county codes and county names developed for the NHGIS.</procdesc>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>Attached FGDC-compliant metadata to every nationwide feature class and converted the feature classes to shapefiles for distribution on the NHGIS data access site.</procdesc>
                			
            </procstep>
            			
            <procstep>
                				
                <procdesc>Metadata imported.</procdesc>
                				
                <srcused>withheld</srcused>
                			
            </procstep>
            			
            <procstep>
                <procdesc Sync="TRUE">Metadata imported.</procdesc>
                <srcused Sync="FALSE">withheld</srcused>
                <date Sync="TRUE">20060911</date>
                <time Sync="TRUE">10311400</time>
            </procstep>
            <procstep>
                <procdesc Sync="TRUE">Dataset copied.</procdesc>
                <srcused Sync="FALSE">withheld</srcused>
                <date Sync="TRUE">20061206</date>
                <time Sync="TRUE">09555300</time>
            </procstep>
        </lineage>
        	
    </dataqual>
    	
    <spdoinfo>
        		
        <direct Sync="TRUE">Vector</direct>
        		
        <ptvctinf>
            <esriterm Name="US_county_1870_ExportFeature">
                <efeatyp Sync="TRUE">Simple</efeatyp>
                <efeageom Sync="TRUE" code="4"/>
                <esritopo Sync="TRUE">FALSE</esritopo>
                <efeacnt Sync="TRUE">0</efeacnt>
                <spindex Sync="TRUE">TRUE</spindex>
                <linrefer Sync="TRUE">FALSE</linrefer>
            </esriterm>
        </ptvctinf>
    </spdoinfo>
    	
    <spref>
        		
        <horizsys>
            			
            <planar>
                				
                <planci>
                    					
                    <plance Sync="TRUE">coordinate pair</plance>
                    					
                    <coordrep>
                        						
                        <absres Sync="TRUE">0.000000</absres>
                        						
                        <ordres Sync="TRUE">0.000000</ordres>
                        					
                    </coordrep>
                    					
                    <plandu Sync="TRUE">meters</plandu>
                    				
                </planci>
                			
            </planar>
            			
            <geodetic>
                				
                <horizdn Sync="TRUE">North American Datum of 1983</horizdn>
                				
                <ellips Sync="TRUE">Geodetic Reference System 80</ellips>
                				
                <semiaxis Sync="TRUE">6378137.000000</semiaxis>
                				
                <denflat Sync="TRUE">298.257222</denflat>
                			
            </geodetic>
            			
            <cordsysn>
                <geogcsn Sync="TRUE">GCS_North_American_1983</geogcsn>
                <projcsn Sync="TRUE">USA_Contiguous_Albers_Equal_Area_Conic</projcsn>
            </cordsysn>
        </horizsys>
        		
        <vertdef>
            			
            <altsys>
                				
                <altres Sync="TRUE">1.000000</altres>
                				
                <altenc Sync="TRUE">Explicit elevation coordinate included with horizontal coordinates</altenc>
                			
            </altsys>
            		
        </vertdef>
        	
    </spref>
    	
    <eainfo>
        		
        <detailed Name="US_county_1870_ExportFeature">
            			
            <enttyp>
                				
                <enttypl Sync="TRUE">US_county_1870_ExportFeature</enttypl>
                				
                <enttypt Sync="TRUE">Feature Class</enttypt>
                <enttypc Sync="TRUE">0</enttypc>
            </enttyp>
            			
            <attr>
                <attrlabl Sync="TRUE">SHAPE_AREA</attrlabl>
                <attalias Sync="TRUE">OBJECTID_1</attalias>
                <attrtype Sync="TRUE">OID</attrtype>
                <attwidth Sync="TRUE">4</attwidth>
                <attrdef Sync="TRUE">Area of feature in internal units squared.</attrdef>
                <attrdefs Sync="TRUE">ESRI</attrdefs>
                <attrdomv>
                    <udom Sync="TRUE">Positive real numbers that are automatically generated.</udom>
                </attrdomv>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            <attr>
                				
                <attrlabl>GISJOIN</attrlabl>
                				
                <attrdef>Attribute used to join GIS data to aggregate data tables</attrdef>
                				
                <attrdefs>NHGIS</attrdefs>
                				
                <attalias Sync="TRUE">GISJOIN</attalias>
                <attrtype Sync="TRUE">String</attrtype>
                <attwidth Sync="TRUE">8</attwidth>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            			
            <attr>
                				
                <attrlabl>DECADE</attrlabl>
                				
                <attrdef>Census decade</attrdef>
                				
                <attrdefs>NHGIS</attrdefs>
                				
                <attalias Sync="TRUE">DECADE</attalias>
                <attrtype Sync="TRUE">String</attrtype>
                <attwidth Sync="TRUE">4</attwidth>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            			
            <attr>
                				
                <attrlabl>NHGISNAM</attrlabl>
                				
                <attrdef>NHGIS county name</attrdef>
                				
                <attrdefs>NHGIS</attrdefs>
                				
                <attrtype Sync="TRUE">String</attrtype>
                <attwidth Sync="TRUE">50</attwidth>
                <attalias Sync="TRUE">NHGISNAM</attalias>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            			
            <attr>
                				
                <attrlabl>NHGISST</attrlabl>
                				
                <attrdef>NHGIS state code</attrdef>
                				
                <attrdefs>NHGIS</attrdefs>
                				
                <attrtype Sync="TRUE">String</attrtype>
                <attwidth Sync="TRUE">3</attwidth>
                <attalias Sync="TRUE">NHGISST</attalias>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            			
            <attr>
                				
                <attrlabl>NHGISCTY</attrlabl>
                				
                <attrdef>NHGIS county code</attrdef>
                				
                <attrdefs>NHGIS</attrdefs>
                				
                <attrtype Sync="TRUE">String</attrtype>
                <attwidth Sync="TRUE">4</attwidth>
                <attalias Sync="TRUE">NHGISCTY</attalias>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            			
            <attr>
                				
                <attrlabl>ICPSRST</attrlabl>
                				
                <attrdef>ICPSR state code</attrdef>
                				
                <attrdefs>Historical, Demographic, Economic, and Social Data: The United States, 1790-2000 (Haines 2001)</attrdefs>
                				
                <attrtype Sync="TRUE">String</attrtype>
                <attwidth Sync="TRUE">3</attwidth>
                <attalias Sync="TRUE">ICPSRST</attalias>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            			
            <attr>
                				
                <attrlabl>ICPSRCTY</attrlabl>
                				
                <attrdef>ICPSR county code</attrdef>
                				
                <attrdefs>Historical, Demographic, Economic, and Social Data: The United States, 1790-2000 (Haines 2004)</attrdefs>
                				
                <attrtype Sync="TRUE">String</attrtype>
                <attwidth Sync="TRUE">4</attwidth>
                <attalias Sync="TRUE">ICPSRCTY</attalias>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            			
            <attr>
                				
                <attrlabl>ICPSRNAM</attrlabl>
                				
                <attrdef>ICPSR county name</attrdef>
                				
                <attrdefs>Historical, Demographic, Economic, and Social Data: The United States, 1790-2000 (Haines 2004)</attrdefs>
                				
                <attrtype Sync="TRUE">String</attrtype>
                <attwidth Sync="TRUE">35</attwidth>
                <attalias Sync="TRUE">ICPSRNAM</attalias>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            			
            <attr>
                				
                <attrlabl>STATENAM</attrlabl>
                				
                <attrdef>State or territory name</attrdef>
                				
                <attrdefs>NHGIS</attrdefs>
                				
                <attrtype Sync="TRUE">String</attrtype>
                <attwidth Sync="TRUE">25</attwidth>
                <attalias Sync="TRUE">STATENAM</attalias>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            			
            <attr>
                <attrlabl Sync="TRUE">ICPSRSTI</attrlabl>
                <attalias Sync="TRUE">ICPSRSTI</attalias>
                <attrtype Sync="TRUE">Integer</attrtype>
                <attwidth Sync="TRUE">4</attwidth>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            <attr>
                <attrlabl Sync="TRUE">ICPSRCTYI</attrlabl>
                <attalias Sync="TRUE">ICPSRCTYI</attalias>
                <attrtype Sync="TRUE">Integer</attrtype>
                <attwidth Sync="TRUE">4</attwidth>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            <attr>
                <attrlabl Sync="TRUE">ICPSRFIP</attrlabl>
                <attalias Sync="TRUE">ICPSRFIP</attalias>
                <attrtype Sync="TRUE">Double</attrtype>
                <attwidth Sync="TRUE">8</attwidth>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            <attr>
                <attrlabl Sync="TRUE">STATE</attrlabl>
                <attalias Sync="TRUE">STATE</attalias>
                <attrtype Sync="TRUE">String</attrtype>
                <attwidth Sync="TRUE">3</attwidth>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            <attr>
                <attrlabl Sync="TRUE">COUNTY</attrlabl>
                <attalias Sync="TRUE">COUNTY</attalias>
                <attrtype Sync="TRUE">String</attrtype>
                <attwidth Sync="TRUE">4</attwidth>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            <attr>
                <attrlabl Sync="TRUE">PID</attrlabl>
                <attalias Sync="TRUE">PID</attalias>
                <attrtype Sync="TRUE">Double</attrtype>
                <attwidth Sync="TRUE">8</attwidth>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            <attr>
                <attrlabl Sync="TRUE">X_CENTROID</attrlabl>
                <attalias Sync="TRUE">X_CENTROID</attalias>
                <attrtype Sync="TRUE">Double</attrtype>
                <attwidth Sync="TRUE">8</attwidth>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            <attr>
                <attrlabl Sync="TRUE">GISJOIN2</attrlabl>
                <attalias Sync="TRUE">GISJOIN2</attalias>
                <attrtype Sync="TRUE">String</attrtype>
                <attwidth Sync="TRUE">7</attwidth>
                <attrdef>Alternate attribute used to join GIS data to aggregate data tables</attrdef>
                <attrdefs>NHGIS</attrdefs>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            <attr>
                <attrlabl Sync="TRUE">Y_CENTROID</attrlabl>
                <attalias Sync="TRUE">Y_CENTROID</attalias>
                <attrtype Sync="TRUE">Double</attrtype>
                <attwidth Sync="TRUE">8</attwidth>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            <attr>
                				
                <attrlabl>SHAPE</attrlabl>
                				
                <attrdef>Feature geometry.</attrdef>
                				
                <attrdefs>ESRI</attrdefs>
                				
                <attrdomv>
                    					
                    <udom>Coordinates defining the features.</udom>
                    				
                </attrdomv>
                				
                <attrtype Sync="TRUE">Geometry</attrtype>
                <attwidth Sync="TRUE">0</attwidth>
                <attalias Sync="TRUE">Shape</attalias>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            			
            <attr>
                <attrlabl Sync="TRUE">ATTEND</attrlabl>
                <attalias Sync="TRUE">ATTEND</attalias>
                <attrtype Sync="TRUE">Double</attrtype>
                <attwidth Sync="TRUE">8</attwidth>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            <attr>
                <attrlabl Sync="TRUE">GISJOIN_1</attrlabl>
                <attalias Sync="TRUE">GISJOIN</attalias>
                <attrtype Sync="TRUE">String</attrtype>
                <attwidth Sync="TRUE">255</attwidth>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            <attr>
                <attrlabl Sync="TRUE">ObjectID</attrlabl>
                <attalias Sync="TRUE">ObjectID</attalias>
                <attrtype Sync="TRUE">Integer</attrtype>
                <attwidth Sync="TRUE">4</attwidth>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
            <attr>
                <attrlabl Sync="TRUE">Shape_Length</attrlabl>
                <attalias Sync="TRUE">Shape_Length</attalias>
                <attrtype Sync="TRUE">Double</attrtype>
                <attwidth Sync="TRUE">8</attwidth>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
                <attrdef Sync="TRUE">Length of feature in internal units.</attrdef>
                <attrdefs Sync="TRUE">Esri</attrdefs>
                <attrdomv>
                    <udom Sync="TRUE">Positive real numbers that are automatically generated.</udom>
                </attrdomv>
            </attr>
            <attr>
                <attrlabl Sync="TRUE">Shape</attrlabl>
                <attalias Sync="TRUE">Shape_Area</attalias>
                <attrtype Sync="TRUE">Double</attrtype>
                <attwidth Sync="TRUE">8</attwidth>
                <attrdef Sync="TRUE">Feature geometry.</attrdef>
                <attrdefs Sync="TRUE">ESRI</attrdefs>
                <attrdomv>
                    <udom Sync="TRUE">Coordinates defining the features.</udom>
                </attrdomv>
                <atprecis Sync="TRUE">0</atprecis>
                <attscale Sync="TRUE">0</attscale>
            </attr>
        </detailed>
        		
        <overview>
            			
            <eaover>This dataset is a shapefile containing polygon features. The features depict historic county boundaries for the Unites States.  There are 13 attributes associated with each county:

OID - unique identifier calculate by ArcSDE

GISJOIN - this attribute is a concatenation of the NHGISST and NHGISCTY codes and is a unique identifier for a county in a given decade. Use this attribute to join the shapefile's attribute table to aggregate data tables downloaded from the NHGIS website.  Please note that values in GISJOIN begin with "G" in order to retain leading zeros. This update took effect on May 7, 2008.

GISJOIN2 - this attribute is an alternative linking attribute and is similar to GISJOIN except that its values do not begin with "G". GISJOIN2 may be used when linking to an aggregate data file extracted before May 7, 2008.

DECADE - this attribute is the census decade

NHGISST - this attribute is the NHGIS state code, which was adapted from the FIPS codes. NHGIS staff added a third character to the FIPS codes for territories.

NHGISCTY - this attribute is the NHGIS county code, which was adapted from the FIPS codes. NHGIS staff added a fourth character to the FIPS codes for historical counties (i.e., counties that no longer exist).

NHGISNAM - this attribute is the NHGIS county name. NHGIS staff adapted the county names from Thorndale and Dollarhide (1987), John Long (various), Haines (2004), and current-day FIPS codes.

ICPSRST - this attribute is the ICPSR state code, which came from the Historical, Demographic, Economic, and Social Data: The United States, 1790-2000 (Haines 2004, http://webapp.icpsr.umich.edu/cocoon/ICPSR-STUDY/02896.xml) dataset. Counties with no value in the ICPSRST column were not found in the ICPSR dataset.

ICPSRCTY - this attribute is the ICPSR county code, which came from the Historical, Demographic, Economic, and Social Data: The United States, 1790-2000 (Haines 2004, http://webapp.icpsr.umich.edu/cocoon/ICPSR-STUDY/02896.xml) dataset. Counties with no value in the ICPSRCTY column were not found in the ICPSR dataset.

ICPSRNAM - this attribute is the ICPSR county name, which came from the Historical, Demographic, Economic, and Social Data: The United States, 1790-2000 (Haines 2004, http://webapp.icpsr.umich.edu/cocoon/ICPSR-STUDY/02896.xml) dataset. Counties with no value in the ICPSRNAM column were not found in the ICPSR dataset.

STATENAM - this attribute is the NHGIS state/territory name. NHGIS staff adapted the county names from Thorndale and Dollarhide (1987), John Long (various), Haines (2004), and current-day FIPS codes.

SHAPE - this is the geometry attribute for the county. ESRI ArcSDE maintains this attribute.

SHAPE.AREA - this is the area of a county, in square meters.

SHAPE.LEN - this is the perimeter of a county, in meters.</eaover>
            		
        </overview>
        	
    </eainfo>
    	
    <distinfo>
        		
        <distrib>
            			
            <cntinfo>
                				
                <cntorgp>
                    					
                    <cntorg>Minnesota Population Center</cntorg>
                    				
                </cntorgp>
                				
                <cntaddr>
                    					
                    <addrtype>physical address</addrtype>
                    					
                    <address>50 Willey Hall</address>
                    					
                    <address>225 19th Ave S</address>
                    					
                    <city>Minneapolis</city>
                    					
                    <state>MN</state>
                    					
                    <postal>55455</postal>
                    				
                </cntaddr>
                			
            </cntinfo>
            		
        </distrib>
        		
        <resdesc>Downloadable Data</resdesc>
        		
        <stdorder>
            			
            <digform>
                				
                <digtinfo>
                    					
                    <transize>0.026</transize>
                    					
                    <dssize Sync="TRUE">0.000</dssize>
                </digtinfo>
                			
            </digform>
            		
        </stdorder>
        	
    </distinfo>
    	
    <metainfo>
        		
        <metd Sync="TRUE">20080424</metd>
        		
        <metfrd>As necessary</metfrd>
        		
        <metc>
            			
            <cntinfo>
                				
                <cntorgp>
                    					
                    <cntorg>Minnesota Population Center</cntorg>
                    					
                    <cntper>Petra Noble</cntper>
                    				
                </cntorgp>
                				
                <cntaddr>
                    					
                    <addrtype>REQUIRED: The mailing and/or physical address for the organization or individual.</addrtype>
                    					
                    <address>50 Willey Hall</address>
                    					
                    <address>225 19th Avenue South</address>
                    					
                    <city>Minneapolis</city>
                    					
                    <state>Minnesota</state>
                    					
                    <postal>55455</postal>
                    					
                    <country>USA</country>
                    				
                </cntaddr>
                				
                <cntvoice>612-625-7375</cntvoice>
                				
                <cntemail>nhgis@pop.umn.edu</cntemail>
                			
            </cntinfo>
            		
        </metc>
        		
        <metstdn Sync="TRUE">FGDC Content Standards for Digital Geospatial Metadata</metstdn>
        		
        <metstdv Sync="TRUE">FGDC-STD-001-1998</metstdv>
        		
        <mettc Sync="TRUE">local time</mettc>
        		
        <metextns>
            			
            <onlink>http://www.esri.com/metadata/esriprof80.html</onlink>
            			
            <metprof>ESRI Metadata Profile</metprof>
            		
        </metextns>
        		
        <metextns>
            			
            <onlink>http://www.esri.com/metadata/esriprof80.html</onlink>
            			
            <metprof>ESRI Metadata Profile</metprof>
            		
        </metextns>
        		
        <langmeta Sync="TRUE">en</langmeta>
    </metainfo>
    	
    <Esri>
        <CreaDate>20061206</CreaDate>
        <CreaTime>09555300</CreaTime>
        <SyncOnce>FALSE</SyncOnce>
        <SyncDate>20230502</SyncDate>
        <SyncTime>10550800</SyncTime>
        <ModDate>20230502</ModDate>
        <ModTime>10550800</ModTime>
        <DataProperties>
            <itemProps>
                <itemName Sync="TRUE">US_county_1870_ExportFeature</itemName>
                <imsContentType Sync="TRUE">002</imsContentType>
            </itemProps>
            <coordRef>
                <type Sync="TRUE">Projected</type>
                <geogcsn Sync="TRUE">GCS_North_American_1983</geogcsn>
                <csUnits Sync="TRUE">Linear Unit: Meter (1.000000)</csUnits>
                <projcsn Sync="TRUE">USA_Contiguous_Albers_Equal_Area_Conic</projcsn>
                <peXml Sync="TRUE">&lt;ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.0.0'&gt;&lt;WKT&gt;PROJCS[&amp;quot;USA_Contiguous_Albers_Equal_Area_Conic&amp;quot;,GEOGCS[&amp;quot;GCS_North_American_1983&amp;quot;,DATUM[&amp;quot;D_North_American_1983&amp;quot;,SPHEROID[&amp;quot;GRS_1980&amp;quot;,6378137.0,298.257222101]],PRIMEM[&amp;quot;Greenwich&amp;quot;,0.0],UNIT[&amp;quot;Degree&amp;quot;,0.0174532925199433]],PROJECTION[&amp;quot;Albers&amp;quot;],PARAMETER[&amp;quot;False_Easting&amp;quot;,0.0],PARAMETER[&amp;quot;False_Northing&amp;quot;,0.0],PARAMETER[&amp;quot;Central_Meridian&amp;quot;,-96.0],PARAMETER[&amp;quot;Standard_Parallel_1&amp;quot;,29.5],PARAMETER[&amp;quot;Standard_Parallel_2&amp;quot;,45.5],PARAMETER[&amp;quot;Latitude_Of_Origin&amp;quot;,37.5],UNIT[&amp;quot;Meter&amp;quot;,1.0],AUTHORITY[&amp;quot;Esri&amp;quot;,102003]]&lt;/WKT&gt;&lt;XOrigin&gt;-16901100&lt;/XOrigin&gt;&lt;YOrigin&gt;-8579000&lt;/YOrigin&gt;&lt;XYScale&gt;10000&lt;/XYScale&gt;&lt;ZOrigin&gt;-100000&lt;/ZOrigin&gt;&lt;ZScale&gt;10000&lt;/ZScale&gt;&lt;MOrigin&gt;-100000&lt;/MOrigin&gt;&lt;MScale&gt;10000&lt;/MScale&gt;&lt;XYTolerance&gt;0.001&lt;/XYTolerance&gt;&lt;ZTolerance&gt;0.001&lt;/ZTolerance&gt;&lt;MTolerance&gt;0.001&lt;/MTolerance&gt;&lt;HighPrecision&gt;true&lt;/HighPrecision&gt;&lt;WKID&gt;102003&lt;/WKID&gt;&lt;LatestWKID&gt;102003&lt;/LatestWKID&gt;&lt;/ProjectedCoordinateSystem&gt;</peXml>
            </coordRef>
        </DataProperties>
        <MetaID>{A3C09845-7ABC-4053-A96B-8BAED54457C2}</MetaID>
    </Esri>
    <dataIdInfo>
        <envirDesc Sync="FALSE">Esri ArcGIS 13.0.3.36057</envirDesc>
        <dataLang>
            <languageCode Sync="TRUE" value="eng"/>
            <countryCode Sync="TRUE" value="USA"/>
        </dataLang>
        <idCitation>
            <resTitle Sync="TRUE">US_county_1870_ExportFeature</resTitle>
            <presForm>
                <PresFormCd Sync="TRUE" value="005"/>
            </presForm>
        </idCitation>
        <spatRpType>
            <SpatRepTypCd Sync="TRUE" value="001"/>
        </spatRpType>
        <dataExt>
            <geoEle>
                <GeoBndBox esriExtentType="native">
                    <westBL Sync="TRUE">-2356113.743199</westBL>
                    <eastBL Sync="TRUE">2258224.796357</eastBL>
                    <northBL Sync="TRUE">1565781.659379</northBL>
                    <southBL Sync="TRUE">-1337508.07728</southBL>
                    <exTypeCode Sync="TRUE">1</exTypeCode>
                </GeoBndBox>
            </geoEle>
        </dataExt>
        <geoBox esriExtentType="decdegrees">
            <westBL Sync="TRUE">-127.887285</westBL>
            <eastBL Sync="TRUE">-65.345793</eastBL>
            <northBL Sync="TRUE">51.604785</northBL>
            <southBL Sync="TRUE">22.871934</southBL>
            <exTypeCode Sync="TRUE">1</exTypeCode>
        </geoBox>
        <idAbs/>
        <idPurp/>
        <idCredit/>
        <resConst>
            <Consts>
                <useLimit/>
            </Consts>
        </resConst>
    </dataIdInfo>
    <mdLang>
        <languageCode Sync="TRUE" value="eng"/>
        <countryCode Sync="TRUE" value="USA"/>
    </mdLang>
    <mdStanName Sync="TRUE">ISO 19115 Geographic Information - Metadata</mdStanName>
    <mdStanVer Sync="TRUE">DIS_ESRI1.0</mdStanVer>
    <mdChar>
        <CharSetCd Sync="TRUE" value="004"/>
    </mdChar>
    <mdHrLv>
        <ScopeCd Sync="TRUE" value="005"/>
    </mdHrLv>
    <mdHrLvName Sync="TRUE">dataset</mdHrLvName>
    <distInfo>
        <distributor>
            <distorTran>
                <onLineSrc>
                    <orDesc Sync="TRUE">002</orDesc>
                    <linkage Sync="FALSE">withheld</linkage>
                    <protocol Sync="TRUE">Local Area Network</protocol>
                </onLineSrc>
                <transSize Sync="TRUE">0.000</transSize>
            </distorTran>
            <distorFormat>
                <formatName Sync="TRUE">Shapefile</formatName>
            </distorFormat>
        </distributor>
        <distFormat>
            <formatName Sync="TRUE">File Geodatabase Feature Class</formatName>
        </distFormat>
    </distInfo>
    <refSysInfo>
        <RefSystem>
            <refSysID>
                <identCode Sync="TRUE" code="102003">USA_Contiguous_Albers_Equal_Area_Conic</identCode>
                <idCodeSpace Sync="TRUE">Esri</idCodeSpace>
                <idVersion Sync="TRUE">4.0.0</idVersion>
            </refSysID>
        </RefSystem>
    </refSysInfo>
    <spatRepInfo>
        <VectSpatRep>
            <geometObjs Name="US_county_1870_ExportFeature">
                <geoObjTyp>
                    <GeoObjTypCd Sync="TRUE" value="002"/>
                </geoObjTyp>
                <geoObjCnt Sync="TRUE">0</geoObjCnt>
            </geometObjs>
            <topLvl>
                <TopoLevCd Sync="TRUE" value="001"/>
            </topLvl>
        </VectSpatRep>
    </spatRepInfo>
    <mdDateSt Sync="TRUE">20230502</mdDateSt>
    <Binary>
        <Thumbnail>
            <Data EsriPropertyType="PictureX">/9j/4AAQSkZJRgABAQEAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAsLDBkSEw8UHRofHh0a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</Data>
        </Thumbnail>
    </Binary>
</metadata>