Thirty-seven years ago it was off 101 going North on the right in an open lot about a block off the highway. It was painted salmon or a shade of pink as I recall, and fairly visible. The last time I was through there some 25 years ago I don't recall seeing it. My memory is somewhat vague, but I recall seeing in a book that it was coach #7, a lot has happened since then. I was with Roger Cook, an Eastern railfan, and he probably took pictures of it, so I'll ask him.
Fortunately, Roger takes pictures of everything, including some of the best inside pictures of the Alamosa shops I've seen, but damn, it's easy to digress.