Altapass Community, North Carolina

The Clinchfield Loops - A: Ridge Tunnel (Mitchell County, North Carolina)
Built as part of the S & W's Altapass to Marion segment; rehabilitated 1958. The following tunnels are labeled beginning with "A" as the line descends the Blue Ridge.
Tunnel under Blue Ridge, Eastern Continental Divide on Clinchfield Railroad (now CSX)
Open to traffic

Vance Tunnel (Mitchell County, North Carolina)
Vance Tunnel is the 37th tunnel on the historic Clinchfield Railroad, linking the Ohio River Valley to the Atlantic coast flatlands
Tunnel under Vance Ridge on Clinchfield Railroad (now CSX)