Layer Estimates:

Layer: Census Block 2010 (ID:1)
Count: 1372
Extent:

XMin: -9018698.1763
YMin: 3773408.6843
XMax: -8990100.4135
YMax: 3814378.224
Spatial Reference: 102100 (3857)

Layer: Census Block 2000 (ID:2)
Count: 677
Extent:

XMin: -9018698.1763
YMin: 3773408.6843
XMax: -8989830.6863
YMax: 3813813.8872
Spatial Reference: 102100 (3857)

Layer: Census Block 1990 (ID:3)
Count: 416
Extent:

XMin: -9018698.5102
YMin: 3773570.2777
XMax: -8990028.501
YMax: 3813774.4729
Spatial Reference: 102100 (3857)