Sierra Nevada Recreation Corporation has been providing underground adventures in California since 1978. We operate four caverns and a gold mine providing education and fun on our family tours and thrills and challenges on our extended expeditions. To find out more about each of our locations, click on the buttons above. A main page for the location will open with links to pages on tours & trips, fact sheet, pictures, map & directions, and filming guidelines. Choosing "pictures" will open a slideshow for that particular location, from which you can download high resolution PDF files. Credit information is given for each individual picture. Under "filming guidelines" we make suggestions on shots based on what has worked well in the past. When allowing film crews into each of our locations, we strive to provide the smoothest possible filming experience, accommodating artistic vision where we can, while always adhering to our commitment to protect the fragile cave environment. We offer complimentary tours and expeditions to travel writers, tour operators and the media. To schedule your complimentary tour, please call or email us using the contact information to the left.