Powered by EMD SD70ACes Nos. 4312 and 4403, Montana Rail Link’s Laurel to Missoula manifest freight follows the meandering edge of the Missouri River in Lombard Canyon east of Toston, Montana, on July 2, 2017.
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.