Thornton Gap to Swift Run Gap Professional Guide
Detailed Trail Description from our Guidebook
"The numerous overlooks and hiking trails highlighting streams, waterfalls, and geologic formations are good reasons for taking your time along Skyline Drive. At Thornton Gap you can view Marys Rock, which is formed of granodiorite.
Marys Rock Tunnel, just south of Thornton Gap, is the only tunnel on Skyline Drive. As you make your way south toward Skyland Lodge, views of Pinnacles and the profi le of Stony Man Mountain dominate the area."