
Western Regional 2025 | September 26-28 | Three Rivers, CA
In the High Sierra many unique marble caves and lots of Sierra scenery await the adventurous caver!
The San Joaquin Valley and Mother Lode Grottos welcome you to come camp along the Kaweah River in the foothills below Sequoia National Park. Visit some of California’s best recreational caves, and enjoy your downtime in the mountains hiking, rock climbing, canyoning, or sightseeing in Sequoia and Kings Canyon National Park & Giant Sequoia National Monument.
Since 1975, the National Cave & Karst Management Symposium has been the preeminent forum for promoting, advancing and sharing concepts in effective management of cave and karst resources. Our conference is a gathering of inquisitive minds and passionate experts who share a common ethic for the responsible management of these rare environments.
Results of Oxygen 17 Isotope Study
A while back Tyler Huth asked for samples of water from caves to examine how oxygen 17 isotopes behave. Some of the samples were provided by Western Region members. Read all about it here: triple oxygen isotopes in speleothems

