The Railroad Glory Days Facebook site posted this image a week ago or so:
Initially, this was identified as the remains of the Como roundhouse. I figured it was the tenement building, but a smart reader correctly identified this as the remains of the covered turntable atop Boreas. The tell-tale is the parapet peaking out over the top of the wall to the right. Also, I believe that is Boreas mountain in the back, and amid the ruin in the center of the image is the snowshed that covered the still-in-use mainline. Not sure where the image came from, but it is sure neat!
Keith Hayes
Leadville in Sn3