Jewel Cave National Monument
Jewel Cave National Monument, located near Custer, South Dakota, is the third-longest cave in the world with over 100 miles of charted and mapped passages. Jewel Cave is also one of the most structurally complex caves in the Black Hills. For hotels located near Jewel Cave, Custer, South Dakota is 10 minutes east and Rapid City is just over an hour northeast of Jewel Cave.
11149 US Hwy 16, Bldg B12, Custer, SD 57730