1936: A treated timber tower was erected. (Division of Forestry Annual Report)
Activated: March 9, 1942. Bellingham Filter Center.
Aircraft Warning Service Station "Yoke 1-4" utilized existing facilities owned by the State of Washington. The AWS added a 12 x 20 garage to the site improvements. Upon deactivation the site was retained by the State for use as a fire detection station. (Report of AWS Stations, May 1, 1944)
1958-60: "The lookout construction work is performed by the Department's own carpentry crew. In the past two years, the crew completed nine lookouts at a cost averaging $8,000 apiece, one of which underwent modernization is located at Devils Mountain, Skagit County." (2nd Biennial Report Washington Department of Natural Resources