As I said in my introduction, I lived for many years in Colorado, but never saw many of the sights in the area, so I decided to make a few detours on a road trip with one of my sons from Colorado to Virginia. This was the first stop. If it looks familiar, maybe you are recalling the climatic scene from Close Encounters of the Third Kind. View is to the NW from a little over a mile (1.5 km) away as the crow flies.
(Submitted to the 2012 October TTT contest.)