Yes it is BoxcabE50. #1 rolling down the line last month https://www.facebook.com/video.php?v=229437839043623
Wow. Very, very cool! Do they have a web site? Is any portion of their loop on old RGS grade? What else do they have?
Here ya go. http://www.ridgwayrailroadmuseum.org/ I was on the way home from a calamity filled camping trip when I came across the museum and had to stop and get some pics. Their Railroad Days is Sept 25/26 so I'm hoping to make it over, 4hrs away, for some camping and to get new photos/video.