• The Historic Entrance of Mammoth Cave

    Mammoth Cave

    National Park Kentucky

Current Conditions

Mammoth Cave National Park is operating normally.

For current information on ferry operations, please phone 270-758-2166.

For current information on park roads, please phone 270-758-2165.

Did You Know?

Did You Know? - Mammoth Cave is the world's longest known cave.

Mammoth Cave is the world's longest known cave, with more than 400 miles of interconnected passages—so long that if the second and third longest caves in the world were joined together, Mammoth Cave would still be the planet's longest cave and have more than 100 miles left over!