Those pics. were taken at the trailhead to Pikipksi(dont know how to spell) which is halfway up engineer pass. Engineer pass starts out of Ouray, CO a couple of miles. Engineer is only a 3 out of 5 but it was a fun trail. When we saw this we had to take a detour.
That is a great area to wheel. Did you do Blackbear?
You may have noticed a "road" spur on engineer pass that looked like a motorcycle might make it (it is loose steep and long, there are two routes straght and to the right), my dad drove his stock 71 Blazer up that years ago with highway tread tires. He still has nightmares about his stupidity.