Layer Estimates:

Layer: Electric_Power_Transmission_Lines (ID:0)
Count: 1282
Extent:

XMin: -9666208.40187666
YMin: 4003712.14316436
XMax: -9313381.93301878
YMax: 4316816.61383424
Spatial Reference: 102100 (3857)

Layer: ElectricSubstations (ID:1)
Count: 966
Extent:

XMin: -9661294.33867254
YMin: 4012485.64542049
XMax: -9326161.05570024
YMax: 4310265.8336418
Spatial Reference: 102100 (3857)