Almost to the summit A westbound BNSF manifest freight powered by three Montana Rail Link SD45s exits Bozeman Pass Tunnel in a swirl of exhaust and is about to crest the summit of Bozeman Pass at West End, Montana, on September 28, 2014.
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.
