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Underground Adventures

The official website of Sierra Nevada Recreation Corporation including the official pages for: Black Chasm Cavern, National Natural Landmark;
AddressPO Box 78 Vallecito, CA 95251-0078
Phone(209) 736-2708
| Enter our brochure photo contest to be on our next brochure!

Welcome to the official website for Black Chasm Cavern, California Cavern, Gold Cliff Mine, Moaning Cavern and Sutter Gold Mine. Here you can find everything you need to plan your trip for some cool underground adventures from the mild, to the challenging and wild!

Make sure to check out the information and videos on our newest and coolest above ground activity: the thrilling twin zip lines at Moaning Cavern.

Go to each location's home page or follow the links on the left to find information on trips... activities... area links... maps and directions. Enjoy the photo galleries on each location; some of the photos posted are by award winning photographers. Download coupons for discounts on your walk tours from each location's home page.

Enter a photo in our Facebook Photo contest for a chance to win a spot on our next brochure printing!

Join our Facebook fan pages for your favorite Cave and Mine Adventures location to upload your own videos and photos, and post reviews and comments:

Moaning Cavern Adventure Park on Facebook

Black Chasm Cavern, National Natural Landmark on Facebook

California Cavern, State Historic Landmark on Facebook

Enjoy free education on caves using either our online lesson plans, or go to our Kids Pages.

If you live locally in Calaveras, Tuolumne or Amador County, join our Locals Adventure Club for significant savings on many activities. Call us toll free if you have any questions: 866-762-2837.

To subscribe to our newsletter and to receive updates & special offers, enter your email address below:

Visit our links pages for each of our locations to find local places to stay and more fun things to do and see!

Our Cave and Mine Adventures brochure is downloadable from this site and contains all activitiy information, directions, hours of operation and more, in a convenient size you can bring with you.

Enjoy a free activity at Black Chasm Cavern, California Cavern, Sutter Gold Mine or Moaning Cavern Adventure Park on your birthday. Must bring proof of birthday. More details on our FREE BIRTHDAYS page.


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