Big South Fork
- Kentucky
- Tennessee

photo: National Park Service
Spanning over 125,000 acres, Big South Fork National River and Recreation Area preserves the Big South Fork of the Cumberland River and its tributaries in northeastern Tennessee and southeastern Kentucky. The Big South Fork region contains one of the highest concentrations of natural bridges in the eastern United States. Over time water action has left many unique and amazing geologic features ranging from the river gorge with its magnificent bluffs to the natural arches and unusual hoodoos. Today, the Big South Fork is a popular destination for hikers, campers, and nature enthusiasts from all over the world.