Layer Estimates:

Layer: counties_study_area (ID:0)
Count: 7
Extent:

XMin: -12012657.1209967
YMin: 5225685.17111119
XMax: -11644397.3749709
YMax: 5971770.83571616
Spatial Reference: 102100 (3857)

Layer: states (ID:1)
Count: 56
Extent:

XMin: -19951916.4837268
YMin: -1643353.73317949
XMax: 20021886.7298438
YMax: 11554352.6208824
Spatial Reference: 102100 (3857)

Layer: Powder River Study Area (ID:2)
Count: 1
Extent:

XMin: -11902822.6561
YMin: 5337187.3568
XMax: -11684674.9719
YMax: 5899693.025
Spatial Reference: 102100 (3857)

Layer: rivers_boundary (ID:3)
Count: 1974
Extent:

XMin: -12062917.8039099
YMin: 5283137.6232138
XMax: -11469087.340878
YMax: 5969185.06226538
Spatial Reference: 102100 (3857)