Layer Estimates:

Layer: Hydroelectric_Line (ID:0)
Count: 178
Extent:

XMin: -8884162.37962994
YMin: 5386698.22379427
XMax: -8855426.77683488
YMax: 5428998.47309808
Spatial Reference: 102100 (3857)

Layer: Hydroelectric_Station (ID:1)
Count: 20
Extent:

XMin: -8884032.58037193
YMin: 5391838.28692015
XMax: -8858958.62583691
YMax: 5429268.59968386
Spatial Reference: 102100 (3857)

Layer: Hydroelectric_Structure (ID:2)
Count: 2474
Extent:

XMin: -8884162.37962994
YMin: 5386696.87339161
XMax: -8855348.87056007
YMax: 5428998.47309808
Spatial Reference: 102100 (3857)