Man crawling through a tight cave passage
Great Basin National Park offers wild caving by permit to those with the necessary skills.

NPS Photo

Wild Caves
Lehman Caves is the most famous of Great Basin National Park's caves, but there are actually more than 40 caves in the park.

One wild cave, Little Muddy, will remain open each winter from October 1st to April 1st for those with a wild caving permit.

All other wild caves used by bats are closed to the public, due to the threat of White-nose Syndrome. As new information about both WNS and Geomyces destructans comes to light, Great Basin National Park will be implementing new decontamination and monitoring procedures, as well as other required guidance, as it becomes available. The park has also committed to reviewing the entire White-Nose Syndrome Response Plan, including cave closures, in three years time. Please work with us to protect our bats and their habitat.

You can find out more at the U.S. Geologic Survey National Wildlife Health Center website or the U.S. Fish and Wildlife Service website.

Caver rappelling down a vertical cavern
A caver exploring one of the vertical permitted caves in Great Basin

NPS Photo

Cave Closure Dates
Little Muddy Cave
April 1 through October 1, or if oxygen levels are below 19%.

Obtaining a Permit
Those who are interested must read and submit a Caving Permit Application (online PDF is currently unavailable) at least two weeks before the intended caving trip. Permits will be approved for those who can demonstrate experience with horizontal and vertical caving techniques, cave conservation ethics, expertise with the required equipment, and can certify that their equipment is clean and disinfected. Application for a permit does not guarantee approval.

The permit must be in your possession while caving. Groups entering wild caves are limited to three to six people.

Permit applications can be mailed to:

Resource Management
Great Basin National Park
100 Great Basin National Park
Baker, NV 89311

For further information please contact the Resource Management staff by email.

Last updated: May 22, 2019

Contact the Park

Mailing Address:

Great Basin National Park
100 Great Basin National Park

Baker, NV 89311


(775) 234-7331
Available 8:00 am - 4:00 pm, Monday through Friday. Closed on Federal holidays.

Contact Us