Just before sunrise, the conductor and engineer of NS 2548 North inspect their power before departing. The engineer is reaching up to unlatch one of the engine compartment doors on his lead unit, an ex-Conrail SD70. The conductor, meanwhile, is heading down the walkway to unlock the manual brake.
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.
