Deep Mysteries
Southern California has a rich mining history.
Explore mysteries with us.
Mine Conservation
A number of Grotto members are highly skilled in ecological remediation and preservation. Members frequently volunteer their time and expertise to assist with mine conservation projects.


Digital Conservation
The grotto is committed to preservation and exploration, both in the real world and digitally.
SoCal Grotto member Hugh Blanchard (1929-2008) created an amazing website about the gold mines of Los Angeles county. To protect the site from being lost forever, here’s a mirror:
