Union Pacific train AGVML 01, a loaded automobile train headed for Mira Loma, CA, is unusual in that it has only a single locomotive up front. Another unusual feature is that the locomotive is a Kansas City Southern de México SD70Ace, number 4091. There is another locomotive as the rear DPU, but even with that, only two locomotives on a loaded train that has to cross mountain passes is out of the ordinary. Photographed on July 5, 2017, at Grand Terrace, California.
