Jewel Cave National Monument (U.S. National Park Service)

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Discover Buried Treasure

Jewel Cave is a unique world of sparkling calcite crystals and other spectacular cave formations. The cave is currently the second longest in the world, at 159.24 miles.

On January 28, 2012, cavers spent 7 hours underground and mapped 291.25 feet of cave passages in the Storm Shelter area.

Check here frequently to keep up to date!

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Monument News

Planning a visit to the second longest cave in the world?
Be sure to read the Monument's newspaper,
the "Calcite Chronicle". This newspaper contains valuable information on topics such as visitor facilities, interpretive
cave tours and programs, hiking trails, and much more.

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Experience the Cave

Find out about the variety of cave tours, which provide
opportunities to view this beautiful and unique cave
system.

more...

$\\Inpjeca20089513\public drive\JECA - Publications\JECA - Newspaper\Newspaper 2010\Images\Rastor\NEWSPAPER$		On the Surface Although often forgotten, the surface of Jewel Cave also provides a unique experience within the monument. more...

Write to

11149 U.S. Highway 16
Building B12
Custer, South Dakota 57730

E-mail Us

Phone

Visitor Information
(605) 673-8300

Fax

(605) 673-8301

Climate

The climate of western South Dakota is semi-arid and frequently windy. Summer temperatures can vary widely, with upper temperatures reaching into the 100s. Winter temperatures can be cold and extremely variable with a temperature range from 20 below zero to the 60s. Deep snow in winter is rare but wind chill can be a hazard.

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