The Red River Gorge is a canyon system on the Red River in east-central Kentucky. Geologically, it is part of the Pottsville Escarpment. Much of the Gorge is located inside the Daniel Boone National Forest and has been subsequently reserved as the Red River Gorge Geological Area, an area of around 29,000 acres. It has been designated a National Natural Landmark and National Archaeological District, and it is listed on the National Register of Historic Places.