River ID

North Fork Big Hole River

Idaho • 45.7008, -113.5385

Reviewed mapped path Updated Feb 1, 2026

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USGS and NOAA data is for informational purposes. Source notes

Length

26 mi

42 km

Elevation

6,198′ → 5,932′

267 ft drop

Stream Order

Large River

Slope

0.20%

10.3 ft/mi

Drainage

1,009 mi²

2,614 km²

Avg Flow

-- cfs

1.4 mph velocity

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