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Jewel Cave National Monument
Photo of Jewel Cave National Monument courtesy NPS

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.

Jewel Cave National Monument was established by Presidential Proclamation on February 7, 1908.

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Facilities available at Jewel Cave National Monument:



Jewel Cave National Monument website
Recreation Area Map
Reservation site
Park Email: JECA_Interpretation@nps.gov

Phone numbers
Headquarters 605-673-2288

Address
RR 1, Box 60 AA
Custer, SD 57730