| Clear Lake Reservoir | |
|---|---|
  Clear Lake Reservoir  Clear Lake Reservoir | |
| Location | Modoc County, California |
| Coordinates | 41°51′36″N 121°08′46″W / 41.860°N 121.146°W |
| Type | reservoir |
| Primary inflows | Lost River |
| Primary outflows | Lost River |
| Basin countries | United States |
| Managing agency | United States Bureau of Reclamation |
| Surface area | 25,760 acres (10,420 ha) |
| Water volume | 527,000 acre⋅ft (0.650 km3) |
Clear Lake Reservoir is a reservoir in the Klamath Basin and the Modoc National Forest, in northwestern Modoc County, California.
It is part of the Klamath Project. and about 40 mi (64 km) northwest of Alturas. It is formed by Clear Lake Dam on the Lost River, a tributary of the Klamath River, and has a capacity of 527,000 acre-feet (650,000,000 m3). The reservoir is not to be confused with Clear Lake, a large natural lake on Cache Creek in Lake County, California.