Blackfoot River (Idaho)
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. The river is part of the Columbia River Basin.
| Blackfoot River | |
|---|---|
Blackfoot River | |
Location of the mouth of the Blackfoot River in Idaho Blackfoot River (Idaho) (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 |
| • elevation | 6,443 ft (1,964 m) |
| Mouth | Snake River |
• location | southwest of Blackfoot, Bingham County, Idaho |
• coordinates | 43°07′38″N 112°30′22″W |
• elevation | 4,413 ft (1,345 m) |
| Length | 135 mi (217 km) |
| Basin size | 1,097 sq mi (2,840 km2) |
| Discharge | |
| • location | near Blackfoot |
| • average | 210 cu ft/s (5.9 m3/s) |
| • minimum | 0 cu ft/s (0 m3/s) |
| • maximum | 2,130 cu ft/s (60 m3/s) |
The Blackfoot River's drainage basin is approximately 1,097 square miles (2,841 km2) in area. 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.
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.