The Bigelow Mountain Shelter, pictured here sometime in the 1950s, was removed from the Appalachian Trail in the 1960s. It is a typical version of the log sided Adirondack style lean-to favored by the early shelter builders. It was located just south of the current Horns Pond Shelter.

From the back of the image: "Lean-to on the Appalachian Trail on the conifer-covered slopes of Mt. Bigelow in Maine. Here the Appalachian Trail and the Bigelow Range Trails meet, affording a crest line route of 20 miles along Mt. Bigelow."