South Fork Salmon River

South Fork Salmon River
Rafters on the South Fork Salmon River
Map showing the Salmon River basin. The South Fork is the second major tributary from left.
Location
CountryUnited States
StateIdaho
Physical characteristics
Sourcenear Monumental Peak
 • locationSalmon River Mountains, Valley County
 • coordinates44°28′47″N 115°41′06″W / 44.47972°N 115.68500°W / 44.47972; -115.68500[1]
 • elevation7,600 ft (2,300 m)
MouthSalmon River
 • location
near Mackay Bar, Idaho County
 • coordinates
45°22′40″N 115°30′47″W / 45.37778°N 115.51306°W / 45.37778; -115.51306[1]
 • elevation
2,146 ft (654 m)
Length86 mi (138 km)[2]
Basin size1,309 sq mi (3,390 km2)[3]
Discharge 
 • locationMackay Bar[3]
 • average1,983 cu ft/s (56.2 m3/s)[3]
 • minimum318 cu ft/s (9.0 m3/s)
 • maximum21,600 cu ft/s (610 m3/s)
Basin features
Tributaries 
 • leftSecesh River
 • rightEast Fork, Elk Creek

The South Fork Salmon River is an 86-mile (138 km)[2] tributary of the Salmon River in Idaho and Valley Counties in central Idaho.[1] The river drains a rugged, lightly populated wilderness watershed in the Salmon River Mountains. It is the second-largest tributary of the Salmon River, after the Middle Fork.

  1. ^ a b c "South Fork Salmon River". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. 1979-06-21. Retrieved 2013-12-15.
  2. ^ a b "USGS National Atlas Streamer". United States Geological Survey. Archived from the original on 2014-05-28. Retrieved 2013-12-15.
  3. ^ a b c "USGS Gage #13314900 on the South Fork Salmon River at Mouth near Mackay Bar, ID". National Water Information System. United States Geological Survey. 1993–2003. Retrieved 2013-12-15.