I was up at Squaw last fall. Went with friends to do some antenna maintenance on the "H" tower. I did hear some shots off in the distance but couldn't see anything.

I'm told the fire lookout, itself, was built in the 20's. Later on (50's or 60's maybe) the large rock 'home' was built by the state.
A Bob Swanlund and wife Margaret actually lived there year around. He was employed as a radio tech by the state and it was his job to keep the Colorado State Patrol radio repeaters running and looking after the emergency power generator's maintenance. They were a delightful older couple.

At the time there was a grader/snow plow parked up there and Bob would actually plow the road after the larger snowfalls. As they got too old to endure the hard winters up there he retired and they moved to the western slope, around Cedaredge I think. They're both deceased now.
There are several rooms in the rock 'house' containing many radio repeaters, mostly commercial interests and municipal public safety systems. Also several unmarked, locked, federal systems (kind of a no-such-agency room). There are some amateur radio repeaters in the semi-dirt basement.

When I was up there last fall the stairway trap door was open and I could walk around the fire lookout structure. It's been long abandoned in favor of more efficient spotting methods, but the structure and laddering is surprisingly solid. Volunteer groups have done a great job keeping it in good shape. I've seen foxes and mountain goats up there.

Winter access is now gained by various agency snow cats. There is another comm site across the saddle to the north about a quarter mile, lots of antennas and dishes and more modern, heated buildings.