Cliff is a rock fin with a tunnel cut through for the road (originally cut by a lumber company to lay train tracks). Area is shady and next to a nice swimming hole. Rock is pretty solid, but can be a bit dirty. Its a day use area right off the road so you may gather some spectators. Top rope is set up by following the trail to the top of the fin and using trees. Your top rope may draw the attention of people up top who may peak over and knock some rocks down, so helmets are a good idea.
Nearest Town: Damascus, VA
From Bristol, VA/TN take exit 19 and turn right on US 58 to Damascus. Follow signs in Damascus to Backbone Rock.
From Marion, VA take exit 29 and turn left on US 91 towards Damascus. Turn right on US 58 in Damascus and follow signs for Backbone Rock.
Take US 133 into TN. You'll drive through the rock and there is a turn out on the left or a parking lot immediately right. You can't miss it.