Started in 1921 as a patrol point, the present L-2 cupola cabin was built in 1929. In 1939, a 50' pole tower with L-4 cab was built. It was discontinued in 1947, and the tower fell down in the 1960's. Then in 1977 the bottom 20' feet of the all-steel Packsaddle Tower was moved to the summit and a 15x15' wooden live-in cab was built, and continues to be staffed every summer. The cupola cabin's exterior has been an ongoing preservation project, and is listed on the National Historic Lookout Register.