Alleged to be at Union Pacific shops in Cheyenne, WY, but I cannot confirm this. No year given either. That's a big one hanging there.
The crane is horizontal (left to right) full width of pic, the track is "in & out" (toward you/away from you) of the plane of the photo on steel beams
The crane is horizontal (left to right) full width of pic, the track is "in & out" (toward you/away from you) of the plane of the photo on steel beams