North Fork Clearwater River

North Fork Clearwater River
North Fork of the Clearwater River, The North Fork
Dworshak Dam on the North Fork Clearwater, near its mouth
North Fork Clearwater River is located in Idaho
North Fork Clearwater River
Location of the mouth of the North Fork Clearwater River in Idaho
North Fork Clearwater River is located in the United States
North Fork Clearwater River
North Fork Clearwater River (the United States)
Location
CountryUnited States
StateIdaho
Physical characteristics
SourceBitterroot Mountains
 • locationIllinois Peak, Shoshone County
 • coordinates47°00′11″N 115°06′16″W / 47.00306°N 115.10444°W / 47.00306; -115.10444
 • elevation5,400 ft (1,600 m)
MouthClearwater River
 • location
Ahsahka, Clearwater County
 • coordinates
46°30′00″N 116°19′50″W / 46.50000°N 116.33056°W / 46.50000; -116.33056
 • elevation
980 ft (300 m)
Length135 mi (217 km)
Basin size2,462 sq mi (6,380 km2)
Discharge 
 • locationClearwater River
 • average5,687.5 cu ft/s (161.05 m3/s)
 • minimum799 cu ft/s (22.6 m3/s)
 • maximum110,000 cu ft/s (3,100 m3/s)
Basin features
Tributaries 
 • leftKelly Creek, Wetias Creek
 • rightLittle North Fork Clearwater River, Elizabeth Creek

The North Fork Clearwater River is a major tributary of the Clearwater River in the U.S. state of Idaho.[1] From its headwaters in the Bitterroot Mountains of eastern Idaho, it flows 135 miles (217 km)[2] westward and is dammed by the Dworshak Dam just above its mouth in north-central Idaho. Draining a rugged watershed of 2,462 square miles (6,380 km2), the river has an average flow of over 5,600 cubic feet per second (160 m3/s), accounting for a third of the discharge from the Clearwater basin.[3] The river drains parts of Clearwater, Shoshone, Latah, and Idaho counties. Most of the watershed is managed by the U.S. Forest Service. Some of the fish of the river include westslope cutthroat trout, rainbow trout, mountain whitefish, and the threatened bull trout. It also has smallmouth bass and a kokanee salmon run, both from Dworshak Reservoir. The North Fork drainage is home to grizzly bears, cougars, deer, moose, black bear, elk, grey wolves, and osprey. The river used to have a large steelhead run before the implementation of Dworshak Dam. The North Fork of the Clearwater is located within the Clearwater National Forest

  1. ^ "North Fork Clearwater River". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. 1979-06-21. Retrieved 2009-08-05.
  2. ^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed May 3, 2011
  3. ^ "North Fork Clearwater River Basin". Idaho Department of Water Resources. www.idwr.idaho.gov. Retrieved 2009-08-05.