Layer Estimates:

Layer: Designated Wild and Scenic Rivers where NPS has a role (ID:1)
Count: 249
Extent:

XMin: -18178467.3462842
YMin: 2064873.43704693
XMax: -7319098.09868836
YMax: 10767911.8015395
Spatial Reference: 102100 (3857)

Layer: Wild and Scenic-Like Rivers managed by the NPS (ID:2)
Count: 7
Extent:

XMin: -10400107.6914202
YMin: 4005597.26420847
XMax: -9003171.55287524
YMax: 4613428.87516323
Spatial Reference: 102100 (3857)

Layer: Designated Wild and Scenic Rivers managed by other agencies (ID:3)
Count: 249
Extent:

XMin: -18178467.3462842
YMin: 2064873.43704693
XMax: -7319098.09868836
YMax: 10767911.8015395
Spatial Reference: 102100 (3857)