River ID MT

North Fork Clearwater River - Dworshak Reservoir

Idaho • 46.5696, -116.2588

Hydrography profile Updated Dec 26, 2025

Checking mapped path coverage…

USGS and NOAA data is for informational purposes. Source notes

Length

135 mi

217 km

Elevation

5,479′ → 969′

4,510 ft drop

Stream Order

Large River

Slope

0.63%

33.5 ft/mi

Drainage

2,438 mi²

6,315 km²

Avg Flow

5,831 cfs

4.2 mph velocity

Path to Mouth

638 mi

1,026 km to ocean

Classification

Headwater

Source Stream

Elevation Profile

Water Quality

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

Data from USGS & NOAA for informational purposes only. More

Access Sites on North Fork Clearwater River - Dworshak Reservoir

There are 4 boat ramps, launches, and public access points on North Fork Clearwater River - Dworshak Reservoir.