Jewel Cave National Monument

41549

Jewel Cave National Monument
11149 US Highway 16
Custer, SD 57730
605-673-2288
http://www.nps.gov/jeca
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With more than 129 miles surveyed, Jewel Cave is recognized as the third longest cave in the world. Airflow within its passages indicates a vast area yet to be explored. Cave tours provide opportunities for viewing this pristine cave system and its wide variety of speleothems including stalactites, stalagmites, draperies, frostwork, flowstone, boxwork and hydromagnesite balloons. The cave is an important hibernaculum for several species of bats.

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