Jewel Cave National Monument
Jewel Cave National Monument
Explore and Discover One of the Last Frontiers in the World
Immerse yourself within the third longest cave in the world. With over 208 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.
Jewel Cave National Monument
11149 US-16 B-12
Custer, SD 57730