I was a fireman on one of these trains, maybe even this one. That particular gondola (a flat car that I believe was a movie car for Butch Cassidy, maybe the one the baggage car was built on to blow up in the movie) is not set up for riders as there is no way to get to the rest of the train. That car was generally used for hauling hay and other supplies to Ah Wilderness and supplies to a mine south of Silverton. This car may be in the train to spot at Silverton, which happened on occasion during this time. The fact that there are some riders in the car is pretty unusual, even for that time. I was a regular fireman on almost all of the trains during this time period and really don't remember using this car for anything but freight. I may have the train orders for this train and will see if I can dig them up.
Mike