Take US 11South to the Natural Bridge Hotel and the US 130 intersection. Turn left on to US 130. Drive 3.4 miles to Route 759, Arnold's Valley Road (at2.3 miles you'll pass the Ranger Station). Turn right onto Route 759 and continue for 3.5 miles to the intersection with Route 781. Turn left onto Route 781, Petites Gap Road. Drive 1.5 miles and lookl for the parking lot on the left and the footbridge to the Belfast Trail.
This Trail begins with a moderate hike along Belfast Creek. Read the trail signs at the beginning of the trail for two very different renditions of the Devil's Marbleyard. The trail arrives at the bottom of the Marble Yard after only one mile. The trail continues another 2 miles to the Appalachian Trail, but you can choose one of two routes, the Belfast Trail along the right side of the boulder field or up the boulderfield itself.