Layer Estimates:

Layer: Acid Mine Drainage (AMD) Impaired Waterways (ID:0)
Count: 11634
Extent:

XMin: -8965053.0863
YMin: 4822328.151
XMax: -8402918.8763
YMax: 5143115.6172
Spatial Reference: 102100 (3857)

Layer: PA_Counties (ID:1)
Count: 67
Extent:

XMin: -8963428.8121
YMin: 4825307.3889
XMax: -8314403.8981
YMax: 5238600.7633
Spatial Reference: 102100 (3857)