The CSX line between Sevier and Altapass, North Carolina - a former Clinchfield main - is one of the most rugged and scenic stretches on the CSX. You'll travel to this region for a feast of non-stop railroading action amid deep rock cuts, loop curves and narrow tunnels - 17 in only 21 miles - and see how the mighty CSX tackles a region where trains are challenged at every turn. Color, 1 hour. #0RV6811