Mammoth Cave National Park is known for its extensive cave system, but it also has a fine backcountry trail system. Backcountry camping is permitted along the trails, but a permit needs to be obtained from the ranger before doing so. The permits are available at no cost. The trails are open year-round.
http://www.nps.gov/maca/index.htm
Phone: 270-758-2180
Address: 1 Mammoth Cave Pkwy Mammoth Cave, KY 42259
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