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.

Long Lost Lake
Long Lost Lake Show map of Minnesota Long Lost Lake Show map of the United States
Location	Long Lost Lake Township, Clearwater County, Minnesota
Coordinates	47°11′42″N 95°25′07″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)

External links

• "Hydrologic Conditions and Lake-Level Fluctuations at Long Lost Lake, 1939–2004" (PDF). (1.95 MiB)
• "Lake Assessment Program 1993: Lost Lake" (PDF). Archived from the original (PDF) on 2006-02-11. (1.39 MiB)
• http://longlostlake.com
• Waterlevels (1992-2006)
• U.S. Geological Survey Geographic Names Information System: Long Lost Lake