A westbound Union Pacific grain train waits for eastbound traffic to pass as the caboose of an intermodal train zips by at Dale Junction, Wyoming, in July 1984. The train will soon depart, all four EMD SD40-2s working hard on the last bit of grade into Hermosa Tunnels.
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.
