Layer Estimates:

Layer: Altered Rivers (ID:0)
Count: 18
Extent:

XMin: -13628063.7734
YMin: 3131186.2791
XMax: -7553679.8275
YMax: 6045925.9062
Spatial Reference: 102100 (3857)

Layer: Rivers2 (ID:1)
Count: 18
Extent:

XMin: -13567981.8432
YMin: 3238309.4279
XMax: -7575596.1285
YMax: 5949645.1791
Spatial Reference: 102100 (3857)