Blackfoot River (Idaho)

Blackfoot River
Blackfoot River
Location of the mouth of the Blackfoot River in Idaho Show map of Idaho Blackfoot River (Idaho) (the United States) Show map of the United States
Location
Country	United States
State	Idaho
Counties	Caribou County, Idaho, Bingham County, Idaho
Physical characteristics
Source
• location	northeast of Soda Springs, Caribou County, Idaho
• coordinates	42°50′22″N 111°18′32″W / 42.83944°N 111.30889°W / 42.83944; -111.30889[1]
• elevation	6,443 ft (1,964 m)[2]
Mouth	Snake River
• location	southwest of Blackfoot, Bingham County, Idaho
• coordinates	43°07′38″N 112°30′22″W / 43.12722°N 112.50611°W / 43.12722; -112.50611[1]
• elevation	4,413 ft (1,345 m)[1]
Length	135 mi (217 km)[3]
Basin size	1,097 sq mi (2,840 km2)[4]
Discharge
• location	near Blackfoot[5]
• average	210 cu ft/s (5.9 m3/s)[5]
• minimum	0 cu ft/s (0 m3/s)
• maximum	2,130 cu ft/s (60 m3/s)

The Blackfoot River is a tributary of the Snake River in the U.S. state of Idaho. Formed by the confluence of Diamond Creek and Lanes Creek, it flows 135 miles (217 km) to its mouth at the Snake River.^[3] The river is part of the Columbia River Basin.

The Blackfoot River's drainage basin is approximately 1,097 square miles (2,841 km²) in area.^[4] Its mean annual discharge, as measured at by USGS gage 13068501 (Combination Blackfoot River and Bypass Channel near Blackfoot, Idaho), is 210 cubic feet per second (5.95 m³/s), with a maximum daily recorded flow of 2,130 cu ft/s (60.3 m³/s), and a minimum of zero flow.^[5]

The river is named for the Blackfoot Indians even though they never lived in the area. It was first mapped by the Lewis and Clark expedition.