• Explore and Discover One of the Last Frontiers in the World ...

    Jewel Cave

    National Monument South Dakota

Explore and Discover One of the Last Frontiers in the World ...

Immerse yourself within the third longest cave in the world. With over 171 miles of mapped and surveyed passages, this underground wilderness appeals to human curiosity. Its splendor is revealed through fragile formations and glimpses of brilliant color. Its maze of passages lure explorers, and its scientific wealth remains a mystery. This resource is truly a jewel in the National Park Service.

Did You Know?

Cavers at camp site deep in Jewel Cave/NPS file photo

From the elevator entrance, it takes over 11 hours for explorers to reach unexplored sections at the end of Jewel Cave. Some survey trips require cavers to remain underground for up to 4 days.