River MT ID

East Fork South Fork Salmon River

Montana • 45.0006, -115.6950

Hydrography profile Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

33 mi

53 km

Elevation

7,923′ → 3,639′

4,284 ft drop

Stream Order

Large River

Slope

2.47%

130.2 ft/mi

Drainage

412 mi²

1,068 km²

Avg Flow

-- cfs

1.4 mph velocity

Path to Mouth

713 mi

1,148 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

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

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Data from USGS & NOAA for informational purposes only. Read source and safety notes

Rain Radar