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Layer: Vegetation _ Lassen Foothills _ ds564 (ID:0)

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Name: Vegetation _ Lassen Foothills _ ds564

Display Field: MCVName

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: The Tehama County Resource Conservation District contracted with the California Native Plant Society (CNPS) and Aerial Information Systems (AIS) to produce a fine-scale, spatially and floristically accurate vegetation map of the Lassen Foothills project area. This area encompasses a 108,400 acre portion of eastern Tehama County and covers three large parcels: South Denny Ranch, Tehama Wildlife Area, and Dye Creek Preserve. The project area represents a biologically diverse mix of vegetation types including grasslands, riparian, foothill chaparral, and oak woodlands. Vegetation resources were assessed through new and previous field surveys, classification analysis of 35 vegetation alliances, and mapping of 37 vegetation map units. To validate the vegetation map, an accuracy assessment with field verification was conducted by CNPS field staff. The minimum mapping unit (MMU) for the study area is approximately 1/2 hectare. Small wetlands were delineated in many incidences below the MMU. The 1/2 hectare MMU applied for all floristic and structural breaks as required by the contract. More information can be found in the project report, which is bundled with the vegetation map published for BIOS here: https://filelib.wildlife.ca.gov/Public/BDB/GIS/BIOS/Public_Datasets/500_599/ds564.zip

Copyright Text: This map was created by Aerial Information Systems. It was prepared for publication in BIOS by the California Department of Fish and Wildlife’s (CDFW) Vegetation Classification and Mapping Program (VegCAMP).

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

Drawing Info:

HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Global ID Field:

Type ID Field: MapClass

Fields:
Types:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 11/17/2025 7:20:21 PM

Schema Last Edit Date: 11/17/2025 7:20:21 PM

Data Last Edit Date: 11/17/2025 6:51:10 PM

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