Big South Fork National River and Recreation Area in Tennessee protects the free-flowing Big South Fork of the Cumberland River and its tributaries. The area boasts miles of scenic gorges and sandstone bluffs, is rich with natural and historic features, and provides visitors with a wide range of outdoor recreational activities including hunting, hiking, fishing, rock climbing, horseback riding and whitewater paddling. This time of year, you can also enjoy the stunning fall colors. Photo by National Park Service.