This is not a locomotive. It is movie prop for the new Christopher Nolan film, INCEPTION. If you look closely at the fake Blomberg trucks, you can see the tires of the three-axle Peterbilt that is hiding underneath the sheet metal. It's parked at the bottom (or just below) the old SP Bull Ring Yard, which hasn't had track in it in decades. If you had told me that one day I'd shoot a GP35 in the Bull Ring again, I'd have thought you were nuts. Here's another view - here