A heavy BNSF coal train grinds through Skyline, Montana, climbing the 2.2% grade up Mullan Pass on Montana Rail Link’s Third Subdivision west of Helena on the morning of June 29, 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.
