I never been able to figure out why this Florence & Cripple Creek scene from Phantom Canon has been included in what appears to be a post card folder regarding the Short Line. But, I think it is related to the fact that at one time all the railroads was controlled by one company...

Either way, I can tell you that this scene is taken of a train coming down to the lower leg of Wilbur Loop at the start, sort of, of Phantom Canon, after looping around the mountain at upper left from a grade near upper middle of image. It will loop again and continuing down the tracks seen in the foreground.