A UP SD40-2 hauls a Plasser Welder north up the Mojave Sub while a BNSF intermodal heads west on the Cajon Sub. UP 3566 has since been rebuilt as SD40N 1832.
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 over several decades.