Long Lost Lake
| Long Lost Lake | |
|---|---|
| Location | Long Lost Lake Township, Clearwater County, Minnesota |
| Coordinates | 47°11′42″N 95°25′07″W / 47.19500°N 95.41861°W |
| Type | closed-basin lake |
| Primary inflows | groundwater |
| Primary outflows | none |
| Basin countries | United States |
| Surface area | 2 km2 (490 acres) |
| Residence time | 1.8 years |
| Surface elevation | 489–493 m (1,604–1,617 ft) |
Long Lost Lake is located in Clearwater County, Minnesota, United States. The closed-basin lake's waterlevel rose from 489 m in 1991 to 491 m in 2001.