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

    Jewel Cave

    National Monument South Dakota

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  • Caution - Roadwork on Highway 16 - Expect Delays

    Construction projects both along highway 16 and the Jewel Cave parking lot are planned during the summer. The visitor center is open daily with tours scheduled throughout the day. Come early, pm tours are usually full. No reservations for cave tours.

  • Highway 16 construction near Jewel Cave entrance

    Construction of Highway 16 through Jewel Cave National Monument is progressing on schedule. Motorists should use caution while traveling through the construction zone. Visitors to Jewel Cave should plan extra travel time and come early in the day. More »

  • The parking lot at Jewel Cave takes shape

    Jewel Cave's parking lot project is on schedule for completion by September 30. The patio area outside the visitor center is planned for work in August. Signage along a service road and staff assistance will help guide visitors to the visitor center. More »

Nature & Science

Jewel Cave is the primary resource of Jewel Cave National Monument, and is currently the third longest cave in the world. Airflow studies indicate that most of the cave has yet to be found. Each year, explorers discover and map an average of three miles of cave passages.

The Monument is also home to a variety of plants and animals, and has a fascinating wildfire history. We invite you to explore all that Jewel Cave National Monument has to offer!

Did You Know?

Person exploring the cave/NPS file photo

Over 80,000 people a year go on cave tours at Jewel Cave National Monument. In the summer season, visitors can tour 3 different areas of Jewel Cave.