Perhaps no other trail in South Carolina provides such an extraordinary backcountry experience as the difficult, Foothills Trail in the northwest corner of the state. Starting with the 1.2 mile Foothills Access Trail in Oconee State Park, only the first 28 miles of the Foothills Trail from the park to Upper Whitewater Falls was designated a National Recreation Trail in 1979. By snaking along the Blue Ridge Escarpment, this trail and its many connectors provide almost 200 miles of hiking; most of it the rugged Appalachian greenbelt variety. The trail is accessible only to hikers, although vehicular access is available to many points along the main trail which, depending where you start, is either 80 or 85 miles long. Even so, considering numerous spur trails and connectors, an ambitious backpacker could hike the backcountry for more than a week.

For More Info:
http://www.foothillstrail.org/
http://www.sctrails.net/Trails/ALLTRAILS/NRT/Foothills.html