Named for the crystals that line its walls, Jewel Cave is the third-longest cave in the world and features calcite crystals and formations of boxwork, cave popcorn and a long ribbon drapery known as “cave bacon.” Nearby, Wind Cave is the sixth-longest cave in the world and home of the world’s largest concentration of rare boxwork formations. The wondrous cave also sits under a 33,970-acre South Dakota wildlife sanctuary.
But these aren’t the only cavernous wonders in the state. Take your pick from the state's many caves and prepare to be awestruck. Learn Seven Things You Didn't Know About Black Hills Caves and check out the listings below to plan your perfect subterranean South Dakota adventure.
Underground Adventures Await

Jewel Cave National Monument
Near Custer, step into one of the longest caves in the world, where sparkling calcite formations create a maze of subterranean beauty beneath the Black Hills.

Wind Cave National Park
In Hot Springs, discover an underground world known for its rare boxwork formations — found in few places on Earth — and an above-ground preserve where bison roam across rolling prairie.
The Travel South Dakota Stories

A Life Underground
Deep below the Black Hills, more than 100 caves reveal a living, breathing world of winding passages and ancient formations. Venture beneath the surface of South Dakota to discover stories and landscapes shaped over time.
A World of Hidden Wonders
See what other travelers discovered in South Dakota, and share yours with #HiFromSD














