Jewel Cave National Monument

Jewel Cave National Monument is the third longest cave in the world with over 200 miles explored. The mileage continues to grow as researchers discover an average of three miles of new passageways each year luring explorers to its maze of endless tunnels. Located less than an hours drive southwest of Rapid City, and in close proximity to Wind Cave National Park, Jewel Cave was named for its dazzling calcite crystals that cover the walls, floor, and ceiling of the cave. 

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