Four UP SD45s roll an empty Kaiser Steel coal train eastward at Martinez on Cajon Pass. The train of high-sided coal hoppers is headed back to the loadout in Utah for another load. The tall and abrupt San Gabriel Mountains dominate the background.
The EMD SD (special duty) series are a strong and reliable kind of locomotive which still serve America's rails today. They have proved themselves reliable by clocking in several million miles of freight service.