River ID

North Fork Little Boulder River

Idaho • 46.2035, -112.1766

Reviewed mapped path Updated Feb 1, 2026

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USGS and NOAA data is for informational purposes. Source notes

Length

12 mi

19 km

Elevation

7,795′ → 4,882′

2,913 ft drop

Stream Order

Stream

Slope

4.56%

240.8 ft/mi

Drainage

19 mi²

48 km²

Avg Flow

-- cfs

0.7 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