Lost River (California)

Lost River
Lost River near Bonanza, Oregon
Map showing the course of the Lost River and tributaries
Location of the mouth of Lost River in California
EtymologyIts lack of surface flow through part of the Langell Valley in Oregon
Location
CountryUnited States
StateCalifornia, Oregon
CountyModoc, Klamath, Siskiyou
Physical characteristics
SourceClear Lake
 • locationModoc County, California
 • coordinates41°55′34″N 121°04′33″W / 41.92611°N 121.07583°W / 41.92611; -121.07583
 • elevation4,479 ft (1,365 m)
MouthTule Lake
 • location
Siskiyou County, California
 • coordinates
41°56′24″N 121°30′19″W / 41.94000°N 121.50528°W / 41.94000; -121.50528
 • elevation
4,035 ft (1,230 m)
Length60 mi (97 km)
Basin size3,010 sq mi (7,800 km2)

The Lost River begins and ends in a closed basin in northern California and southern Oregon in the United States. The river, 60 miles (97 km) long, flows in an arc from Clear Lake Reservoir in Modoc County, California, through Klamath County, Oregon, to Tule Lake in Siskiyou County, California. About 46 mi (74 km) of Lost River are in Oregon, and 14 miles (23 km) are in California.