United States. Forest Service. Southern Region. (2020). Red River Gorge geological area, Daniel Boone National Forest, Kentucky (Revised June 2020.). U.S. Department of Agriculture, Forest Service, Southern Region.
Chicago Style (17th ed.) CitationUnited States. Forest Service. Southern Region. Red River Gorge Geological Area, Daniel Boone National Forest, Kentucky. Revised June 2020. Atlanta, Ga.: U.S. Department of Agriculture, Forest Service, Southern Region, 2020.
MLA (9th ed.) CitationUnited States. Forest Service. Southern Region. Red River Gorge Geological Area, Daniel Boone National Forest, Kentucky. Revised June 2020. U.S. Department of Agriculture, Forest Service, Southern Region, 2020.
Warning: These citations may not always be 100% accurate.