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 / 44.18722; -113.27917[1]
• 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 / 43.76444; -112.97278[1]
• elevation	4,806 ft (1,465 m)
Length	49 mi (79 km), Northwest-southeast
Basin size	963 sq mi (2,490 km2)[2]
Discharge
• average	64.1 cu ft/s (1.82 m3/s)[3]
• 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^[4] 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.