An eastbound Southern Pacific freight rolls through Warren curve west of Mojave, California, on March 6, 1995. Powering the train is a pair each of EMDs and GEs—SP SD40T-2 No. 8517 leads Cotton Belt SD45T-2 No. 9396, SP B39-8 No. 8008 and SSW B40-8 No. 8074.
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.
