From the URL: http://www.firelookout.com/mt/blackbuttemt.html
BLACK BUTTE LOOKOUT
3 miles southwest of Eureka MT
Kootenai National Forest
4064`
Initially used as a patrol point in the 1920`s, the first tower built
was a 35` pole L-4. In 1973, an 8x8` cab was installed atop the radar
installation, with no living quarters. The present 45` all-steel live-in
tower was constructed in 1983 and is staffed every summer. Photo courtesy
of Gary Weber.