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Jewel Cave National Monument Description
13 mi. west of Custer is the Jewel Cave National Monument, a karstic cave in which crystals of calcareous spar sparkle like jewels.

Currently at just over 140 miles long making Jewel Cave the second longest cave system in the world. Jewel Cave features sparkling calcite crystals, delicate strands of gypsum, and other cave formations. It contains large rooms strewn with boulders, tight crawlways, and dark fissures leading into the unkown.
Hobbies & Activities category: Cave;  National park
Address
Jewel Cave National Monument
Jewel Cave National Monument
11149 US Hwy 16, Bldg B12
Custer, SD 57730-0060
United States
Map Jewel Cave National Monument
Phone 1 (605) 673-2288
Fax 1 (605) 673-3294
http://www.nps.gov/jeca/
Hours
MonTueWedThuFriSatSun
Open8:008:008:008:008:008:008:00
Closed16:3016:3016:3016:3016:3016:3016:30
Always closed on:
New Year's Day (January 1)
Thanksgiving - USA (4th Thursday, November)
Christmas - Christian (December 25)
Cost
Adult$8.00
Child 6-16$4.00
Child 5 & underFREE
Senior$4.00
Tips
Closing times vary, with extended hours during the summer.
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