How did the Cave Form?

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Duration:
2 minutes, 49 seconds

Many visitors wonder about the geology of Jewel Cave. How did the cave form? How old is the cave? How does the cave relate to the Black Hills. Experience the mystery and wonder of one of the longest caves in the world through an animated story of geologic history.

 

Last updated: November 21, 2025

Contact Info

Mailing Address:

11149 U.S. Hwy. 16
Building B12
Custer, SD 57730

Phone:

605 673-8300
The main phone line connects visitors with staff at the visitor center. Throughout the year, the phone line is monitored by staff on a daily basis, excluding holidays and days with limited visitor services. Please be advised that after-hours messages are not taken on the system; visitors are encouraged to call the visitor center during normal operations and speak with a park ranger for assistance.

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