745 passes the signal at Big Stone Gap, entering yard limits on a restricting heading into Appalachia. At Appalachia, a mine shifter crew will take over the train to shove up through the yard at Andover to Wentz to load. The track in the foreground is CSX's Cumberland Valley Subdivision, which connects with the Appalachia District here for a trackage rights run to Frisco, TN.
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.