View from highway - Photo National Forest highway sign. Access to Pittman Lake, South Carolina - South side of highway via the National Forest Roadway. Bounded at one end by the port city of Charleston and at the other by the Blue Ridge Mountains, the South Carolina Heritage Corridor contains historic, cultural, and natural resources that tell the lively story of South Carolina's centuries long evolution and culture. Learn of rice and indigo, pirates and patriots, slaves and freemen, cotton fields and mill villages, swamps and waterfalls, railroads and back roads, spirituals and bluegrass.