The Red River Gorge Geological Area, surrounding the middle section of the Red River, is a unique landscape containing more than 80 major natural arches and a most unusual assortment of vegetation. The geological area covers 25,662 acres and the terrain has been sculptured by wind and water for more than 70 million years. Sky Bridge, one of the most spectacular arches, is a solid rock span stretching along the top of a thin ridge. From the summit of this bridge, visitors are treated to a magnificent panoramic view of the Gorge. The Daniel Boone National Forest administers the area for year-round public use and enjoyment, while protecting its watersheds, wildlife, unique natural formations and primitive character.
Scenic drives lead visitors to many overlooks and to picnic areas and dispersed camping areas.
The 36-mile system of loop trails in the area has been designated as the Red River Gorge National Recreation Trail. It provides access to many scenic and historical attractions and connects with a number of developed recreation areas and the Sheltowee Trace National Recreation Trail . The unique geological features of the area are primarily due to the resistance of the sandstone to erosion. Rockshelters, lighthouses, and arches boldly illustrate the power of erosional processes in the area. Where underlying rock is weaker than an erosion-resistant layer above it, differential weathering washes out the weaker layers.