River MT

American River

Montana • 45.8789, -115.4423

Length

22 mi

36 km

Elevation

5,431′ → 3,884′

1,546 ft drop

Stream Order

5

Medium River

Slope

1.31%

69.0 ft/mi

Drainage

91 mi²

236 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

622 mi

1,001 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

Data from EPA Water Quality Portal (USGS, EPA, state agencies).

EPA WQP MyWaterway

Data from USGS & NOAA for informational purposes only. More