Yes, that was the old SP/Santa Fe joint freight depot located between the SP Sunset Route (where this train was on) and the ATSF main to the far left of the depots. Just out of sight in front of the train is Tower 17 where the ATSF crossed the Sunset and this train would leave the SP for Santa Fe tracks.
I like views such as this! Sadly, it's very difficult to see these days. Depots gone. "Dome" cars aren't really domes.... Boxcab E50