Activated: September 11, 1942; Deactivated: October 16, 1943. Seattle Filter Center.
October 16, 1943: Aircraft Warning Service Station "Yoke 6-0" was inactivated. The station utilized current facilities owned by the Mt. Baker National Forest. The AWS added a small storage building to the improvements. Upon the end of service the site was retained by the Forest Service. (Report of AWS Station, May 1, 1944)