Southbound on the former Clinchfield Railroad, a pair of AC4400W's shove hard on the rear of a loaded unit coal train as they duck into a tunnel near Martin, Virginia on the Kingsport Subdivision.... (more)

Southbound on the former Clinchfield Railroad, an old veteran GE lugs a southbound loaded unit coal train through an s-curve near Martin, Virginia on the CSX Kingsport Subdivision. .