Bessemer & Lake Erie 909 leads DM&IR 405 and B&LE 900 up Proctor Hill with empty blast furnace trim cars (crushed raw taconite rock). The bright cars can also double as ballast haulers.
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.