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

    Jewel Cave

    National Monument South Dakota

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  • Caution - Parking Lot at Jewel Cave is under construction

    The parking lot project is on schedule for completion this fall. There is limited RV parking. The stairs and wheelchair ramp to the visitor center are also under construction. Signage along a service road will help guide visitors to the visitor center. More »

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Did You Know?

Calcite Spar Crystal/NPS file photo

The “jewels” of Jewel Cave are calcite spar crystals. Calcite, which is about as hard as your fingernail, is too soft to be considered a true jewel.