Portneuf River (Idaho)

Portneuf River
The Portneuf River, as seen from U.S. Route 30 west of Lava Hot Springs, October 2004
Portneuf River (Idaho) is located in Idaho
Portneuf River (Idaho)
Location of the mouth of the Portneuf River
Portneuf River (Idaho) is located in the United States
Portneuf River (Idaho)
Portneuf River (Idaho) (the United States)
Location
CountryUnited States
StateIdaho
CountiesBannock, Caribou, Bingham, & Power
Physical characteristics
Source 
 • locationnorth of Chesterfield, Bingham County
 • coordinates43°06′10″N 112°00′13″W / 43.10278°N 112.00361°W / 43.10278; -112.00361[1]
 • elevation6,253 ft (1,906 m)[2]
MouthSnake River
 • location
American Falls Reservoir, Bannock/Power counties
 • coordinates
42°57′06″N 112°45′02″W / 42.95167°N 112.75056°W / 42.95167; -112.75056[1]
 • elevation
4,357 ft (1,328 m)[1]
Length124 mi (200 km)[3]
Basin size1,329 sq mi (3,440 km2)[4]
Discharge 
 • locationat Tyhee[5]
 • average418 cu ft/s (11.8 m3/s)[5]
 • minimum32 cu ft/s (0.91 m3/s)
 • maximum1,730 cu ft/s (49 m3/s)

The Portneuf River is a 124-mile-long (200 km)[3] tributary of the Snake River in southeastern Idaho, United States. It drains a ranching and farming valley in the mountains southeast of the Snake River Plain. The city of Pocatello sits along the river near its emergence from the mountains onto the Snake River Plain.

The river is part of the Columbia River Basin.

  1. ^ a b c "Portneuf River". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. June 21, 1979. Retrieved July 22, 2013.
  2. ^ Source elevation derived from Google Earth search using GNIS source coordinates.
  3. ^ a b "National Hydrography Dataset". United States Geological Survey. Retrieved July 22, 2013.
  4. ^ Cite error: The named reference nwcouncil was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference wdr-id-05 was invoked but never defined (see the help page).