- Black Chasm Cavern - Foot-long crystal formations, huge rooms and deep lakes. Nr Jackson, California, USA.
www.caverntours.com/BlackRt.htm
- Boyden Cavern - Kings River Canyon, Sequoia National Park, California, USA.
caverntours.com/BoydenRt.htm
- California Cavern - Various tours including marriage ceremonies. Cave City, Calaveras County, California, USA.
www.caverntours.com/CalifRt.htm
- Crystal Cave - Sequoia National Park, California, USA.
www.sequoiahistory.org/cave/cave.htm
- Lake Shasta Caverns - O'Brien, California, USA.
www.caladventures.com/ShastaCaverns.htm
- Mercer Caverns - Murphys, California, USA.
www.mercercaverns.com
- Mitchell Caverns, California - Needles, Mojave Desert, S California, USA.
pages.prodigy.net/jonwhitcomb/examp-mitchell
- Moaning Cavern - Discover California's largest single chambered public cavern including a 165-feet rappel. Sonora, California, USA.
www.caverntours.com/MoCavRt.htm
- Sutter Gold Mine - Modern hard rock mine in the heart of the Mother Lode, Vallecito, California, USA
www.caverntours.com/sgmt.html
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