Well, I got a new contest for you all. You gotta be fast, if you wanna win this one since it's fairly easy. So watch out for the big boys commin' to get you.
UP Steam roundhouse, Cheyenne, WY. The oldest building still standing in Wyoming (tied with the UP depot).
I picked up on the Big Boy clue after I saw the photo. I spent a lot of time in both facilities while living in Cheyenne 2003-2006. Google has great resolution here. There's no less than 3 D&RGW cabeese and a D&RGW F9B near this shop area.
I was also looking to see if I could spot anything specific. Is there a web site which lists their collection pieces?
I am not sure as it kind of tends to rotate about every so often. Here is a link to a photo album I shot of the equipment last time I was there, I tried to get as much as I could, but some of it I did miss (and not all of the photos are there as some came out poorly) http://www.rrpicturearchives.net/archiveThumbs.aspx?id=60609