Cumberland Gap tunnel (the old one) – Blogging the Railroad Tunnels
Cumberland Gap Tunnel - US 25E: About
25th anniversary of the opening of the Cumberland Gap Tunnel
Cumberland Gap Highway Tunnel Celebrates 15th Anniversary - Cumberland Gap National Historical Park (U.S. National Park Service)
Cumberland Gap Tunnels | Dr. Sauer & Partners
Cumberland Gap tunnel | Kentucky travel, Cumberland gap, Cumberland gap tunnel
Cumberland Gap Tunnel
Bridgehunter.com | CSX - Cumberland Gap Tunnel
The Cumberland Gap Tunnel | The Cumberland Gap Tunnel is one of only two tunnels in the US that cross over state lines (the other is the East River Mountain Tunnel that
File:Cumberland Gap Tunnel P9040327.JPG - Wikimedia Commons
Cumberland Gap Tunnel - US 25E: About
Cumberland Gap Tunnel - US 25E
Cumberland Gap Tunnel - Bridges and Tunnels
Driving through The Cumberland Gap Tunnel from Tennessee to Kentucky - YouTube
Cumberland Gap Tunnel, 31 S US Highway 25E, Barbourville, KY, Historical Places - MapQuest
Travel: Experiencing the Cumberland Gap Tunnel on ColumbiaMagazine.com