This is a composite image from several different scenes — Estes Park, Colorado, Canyon De Chelly, Arizona and the Black Hills of South Dakota plus a touch, just a touch, of Yellowstone National Park, Wyoming.
For the Photoshop aficionados, this is a layered file of 4 photographs with varying transparency. I then added a mask to each layer to bring out or hide the details I wanted. When I had the feel right there, I added a vignette. After the vignette, I compressed the layers, I duplicated that layer, added a dry brush filter, altered the transparency, merged those two layers, added a highlight edges filter, altered the transparency and then merged the layers again. I then go in by hand and do some touch ups. Viola, several hours later — Dawn’s Horses. I may still go back and tinker. I always save my layers in progress so I can go back to the bottom and start over if I want.
Below is a copy you can blow up by clicking on it: