Layer Estimates:

Layer: Streets (ID:0)
Count: 933
Extent:

XMin: 1279827.19562522
YMin: 366352.191832468
XMax: 1311456.02836348
YMax: 397445.750048086
Spatial Reference: 102729 (2272)

Layer: Blocks (ID:1)
Count: 30520
Extent:

XMin: 1239236.3854865
YMin: 319598.584077222
XMax: 1430777.25813638
YMax: 499437.671138914
Spatial Reference: 102729 (2272)

Layer: Congressional District (ID:2)
Count: 18
Extent:

XMin: 1189424.06331196
YMin: 140785.28057777
XMax: 2829295.03717521
YMax: 1174061.81300011
Spatial Reference: 102729 (2272)

Layer: Allegheny_County_Blocks_2016 (ID:3)
Count: 30520
Extent:

XMin: 1239236.3854865
YMin: 319598.584077222
XMax: 1430777.25813638
YMax: 499437.671138914
Spatial Reference: 102729 (2272)