Warn winch ad from the 70's, Black Bear Road in Ouray CO.
The trail is wider now than it was then, but I would bet that picture was "staged" but probably not altogether fake.
That trail was created as a mining road between Ouray and Telluride. It has some switchbacks that even today will get your undivided attention.
http://www.flashoffroad.com/Articles.../blackbear.htm