Deep below the surface of the Black Hills, you’ll find another underground wilderness--one filled with calcite jewels, sparkling stalactites and hidden caverns. In fact, of the 72 known calcite crystal caves in the world, 68 of them are located in the Black Hills. While Black Hills caves comprise the second longest chain of cavern systems on the planet, many of them are still considered “wild caves” and are only being explored by professional spelunkers and geologists.
However, there are seven caves open for tours, two of them are part of the National Parks Service and just minutes from Custer.
Jewel Cave National Monument is approximately 15 minutes west of Custer. Adorned with calcite jewels, Jewel Cave is the second longest cave in the world and it soon could be the world’s longest! Spelunkers and researchers continue cave exploration and map an average of three additional miles every year. Air flow in the cave indicates there are a lot more passageways to explore.
Wind Cave National Park is also one of the world’s longest and most complex caves. Rare intricate boxwork and the gusty winds are highlights of this national park. Both national caves are open year-round and offer ranger guided tours.
Wind Cave National Park
Location: 26611 U.S. Hwy 385, Hot Springs, SD
Location: 11149 US Hwy. 16, Bldg. B12, Custer, SD
Location: 2600 Cavern Road, Rapid City, SD
Phone: 605- 343-0542 or 1-800-837-9358
Location: 13622 Highway 40, Keystone, SD
Location: 13745 S. Highway 16, Rapid City, SD 57701
Location: Vanocker Canyon Road, near Sturgis
Phone: 605-578-1728 (summer only)