Layer Estimates:

Layer: colorado_river_main (ID:185)
Count: 3
Extent:

XMin: -12989271.9822147
YMin: 1774686.38390506
XMax: -10449671.0326848
YMax: 4910616.38983973
Spatial Reference: 102100 (3857)

Layer: colorado_river_lower (ID:186)
Count: 1
Extent:

XMin: -12907269.1406041
YMin: 1774686.38390506
XMax: -10480783.1800176
YMax: 4447890.14192792
Spatial Reference: 102100 (3857)

Layer: colorado_river_tributaries (ID:219)
Count: 47
Extent:

XMin: -12781281.9999768
YMin: 3676206.99995113
XMax: -11779489.0000006
YMax: 5368178.99998147
Spatial Reference: 102100 (3857)