Little Lost River
| Little Lost River | |
|---|---|
The Little Lost River Valley viewed from the west slope of the Lemhi Range | |
Map of the lost streams of Idaho including the Little Lost River | |
| Location | |
| Country | United States |
| State | Idaho |
| City | Howe |
| Physical characteristics | |
| Source | Confluence of Sawmill and Summit Creeks |
| • location | Upper Little Lost River Valley, Butte County |
| • coordinates | 44°11′14″N 113°16′45″W / 44.18722°N 113.27917°W |
| • elevation | 6,100 ft (1,900 m) |
| Mouth | Little Lost River Sinks |
• location | Near Howe, Butte County |
• coordinates | 43°45′52″N 112°58′22″W / 43.76444°N 112.97278°W |
• elevation | 4,806 ft (1,465 m) |
| Length | 49 mi (79 km), Northwest-southeast |
| Basin size | 963 sq mi (2,490 km2) |
| Discharge | |
| • average | 64.1 cu ft/s (1.82 m3/s) |
| • minimum | 3 cu ft/s (0.085 m3/s) |
| • maximum | 509 cu ft/s (14.4 m3/s) |
| Basin features | |
| Tributaries | |
| • left | Sawmill Creek, Uncle Ike Creek |
| • right | Summit Creek, Wet Creek |
The Little Lost River is a river in the central part of the U.S. state of Idaho. It is approximately 49 miles (79 km) long and drains an arid farming valley, the Little Lost River Valley, bordered by the Lost River Range on the west and Lemhi Range on the east. Instead of emptying into a larger body of water, it disappears into the ground at the edge of the Snake River Plain, a phenomenon that gives it its name. The water feeds into the Snake River Aquifer, eventually reaching the Snake River through a series of springs farther west.