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Mammoth Cave National Park

Photo: Warren LeMay / CC BY-SA 2.0

🕳️ Caves

Mammoth Cave National Park

Cave City, KY · Kentucky Cave Country

About

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.

Highlights

World's longest cave at over 426 mapped milesHistoric Tour past Broadway and the Bottomless PitConstant 54-degree underground temperatureUNESCO World Heritage Site and Biosphere ReserveTours from easy walks to strenuous crawls

Getting there

1 Mammoth Cave Pkwy, Mammoth Cave, KY 42259

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