River WY

North Fork Little Missouri River

Wyoming • 44.8922, -104.9028

Hydrography profile Updated Feb 1, 2026

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USGS and NOAA data is for informational purposes. Source notes

Length

49 mi

78 km

Elevation

4,090′ → 3,581′

508 ft drop

Stream Order

Medium River

Slope

0.20%

10.5 ft/mi

Drainage

167 mi²

433 km²

Avg Flow

-- cfs

1.1 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