Mammoth Cave National Park
Cave City, KY · Kentucky Cave Country
Mammoth Cave is the longest known cave system on Earth, with more than 426 mapped miles of passages winding through Kentucky limestone laid down hundreds of millions of years ago. Ranger-led tours drop visitors into a constant 54-degree underworld of vast rotundas, vertical shafts, and tight squeezes like Fat Man's Misery. The Historic Tour traces the same corridors people have walked since the early 1800s, past Broadway and the Bottomless Pit.





