Layer Estimates:

Layer: 1980_Area_Tracts_With_Population_Density_Generalized (ID:0)
Count: 328
Extent:

XMin: -11005141.8405896
YMin: 3389014.14359267
XMax: -10813232.7375106
YMax: 3621739.4978409
Spatial Reference: 102100 (3857)