Nate, that would most likely be a San Joaquin. I can't think of anything else it could be. Serious doubts it's a rerouted long-distance train, no baggage car and only one unit. What I find interesting is the number of cars in the consist is high for that class of service. Note the two lower-in-height superliner cars are prior-AT&SF cars. Most likely the forward one being a lounge car, and the rear one being a chair car. Thanks for posting! If you can do it, could you contact me? arizonafilm@att.net