Layer Estimates:

Layer: 2021 Pittsburgh Area Transit Routes (ID:0)
Count: 102
Extent:

XMin: -8936282.31493936
YMin: 4904447.28305771
XMax: -8871333.52850506
YMax: 4963448.03529415
Spatial Reference: 102100 (3857)

Layer: AllCountyBGwithData (ID:1)
Count: 1062
Extent:

XMin: -8945723.94216758
YMin: 4894216.69700586
XMax: -8870936.47556994
YMax: 4964513.41979762
Spatial Reference: 102100 (3857)

Layer: Allegheny County MVA (ID:2)
Count: 1114
Extent:

XMin: -8945731.84417835
YMin: 4894225.15033381
XMax: -8870912.65681696
YMax: 4964513.41733289
Spatial Reference: 102100 (3857)