The highest lookout site in Washington state, construction began on the D-6 cupola cabin in 1918, but continued for 3 years. The lookout was staffed from 1922-1924 then abandoned. Sulfur miners took over the cabin in the 1930's, adding a couple of additions and recycling the cupola in the process. The cabin is still there, encased in ice most of the time.
Gifford Pinchot (Columbia) National Forest
55 miles southwest of Yakima
Yakima County, Washington
Elevation 12,276'

Click for larger image
Mt. Adams in 1980
Photo courtesy of Mike Hardy