Three Cascade green Burlington Northern locomotives pull BNSF train No. 20 eastbound along the frozen banks of the Clark Fork between Bearmouth and Drumond, Montana, on February 8, 1997. At this point in its early history, BNSF was still using BN’s numbering system for trains operating on former BN routes.
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.
