Custer, United States
Jewel Cave National Monument
Jewel Cave National Monument contains Jewel Cave, currently the fifth longest cave in the world and second longest cave in the United States, with 220.33 miles of mapped passageways as of July 2025. It is located approximately 13 miles west of the town of Custer in the Black Hills of South Dakota. Jewel Cave became a national monument in 1908, becoming the first national monument established for the protection and preservation of a cave.
- City
- Custer
- Country
- United States
- Category
- Historic
- Suggested visit
- About 90 minutes
More places in Custer
Background: Wikipedia