• 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 this summer season. The visitor center will be open daily, 8:00 a.m. – 5:30 p.m. Tours are scheduled throughout the day. No reservations for cave tours. More »

Laws & Policies

As of February 22, 2010, a new federal law allows people who can legally possess firearms under applicable federal, state, and local laws, to legally possess firearms in this park.

It is the responsibility of visitors to understand and comply with all applicable state, local, and federal firearms laws before entering this park. As a starting point, please visit the following State of South Dakota websites:

South Dakota Codified Laws

South Dakota Concealed Pistol Permit Information

Federal law also prohibits firearms in certain facilities in this park; those places are marked with signs at all public entrances.

Did You Know?

Large cave passage / Marc Ohms photo

The largest room discovered in Jewel Cave is called the Big Duh. It measures 570 feet long, is 180 feet wide at its widest point, and is 30 feet tall.