It was listed on the U.S. National Register of Historic Places on April 11 , 1986 .
The Lost Lake Guard Station in Okanogan National Forest near Tonasket , Washington was built in 1940 by the Civilian Conservation Corps .
Lost Lake Guard Station was listed on the U.S. National Register of Historic Places on April 11 , 1986 .
The Lost Lake Guard Station in Okanogan National Forest near Tonasket , Washington was built in 1940 by the Civilian Conservation Corps .