Mt. Soledad landslide in La Jolla, CA - October 2007

California Geological Survey

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​The California Geological Survey is one of the oldest geological surveys in the nation. Our mission is to provide scientific products and services about the state's geology, seismology, and minerals that affect the health, safety, and business interests of the people of California. –“Altiora Petimus” (We Reach Higher)

 

 

New: Radon Potential in Western Nevada County (Special Report 258)New: Radon Potential in Western Nevada County (Special Report 258)SR 258 consists of a report and one plate (large map) identifying areas within western Nevada County where geologic conditions are more likely to contribute to excessive indoor radon levels. The report documents the data and procedures used to develop the map.https://www.conservation.ca.gov/cgs/publications/releases#sr258, Publication Announcementshttps://www.conservation.ca.gov/cgs/Lists/News/DispForm.aspx?ID=1772024-05-03T17:00:00Z
New report: 2021 California Non-Fuel Mineral ProductionNew report: 2021 California Non-Fuel Mineral ProductionFor 2021, California remained one of the largest producers of non-fuel minerals in the United States. California ranked fourth, accounting for approximately 5.8 percent of the nation’s total. This report discusses production by commodity and summarizes current exploration.https://www.conservation.ca.gov/cgs/minerals/mineral-production, Link to the California Mineral Production pagehttps://www.conservation.ca.gov/cgs/Lists/News/DispForm.aspx?ID=1762024-03-14T00:00:00Z
New: Radon Potential in Western El Dorado County (Special Report 256)New: Radon Potential in Western El Dorado County (Special Report 256)SR 256 consists of a report and one plate (large map) identifying areas within western El Dorado County where geologic conditions are more likely to contribute to excessive indoor radon levels. The report documents the data and procedures used to develop the map.https://www.conservation.ca.gov/cgs/publications/releases#sr256, Publication Announcementshttps://www.conservation.ca.gov/cgs/Lists/News/DispForm.aspx?ID=1752024-03-07T01:00:00Z

 Upcoming Events

 

 

Calendar of geology-related events and anniversariesCalendar of geology-related events and anniversariesSubscribe to our Public Calendar of Events and never miss an important date: Anniversaries of major earthquakes and tsunamis · The Great Shakeout · SMIP Seminar...and more!2024-01-01T08:00:00Z2026-01-01T08:00:00Zhttps://www.conservation.ca.gov/cgs/events, Link to Public Calendar of Events page


 Featured Content

 

 

Strong Motion Data and ReportsStrong Motion Data and ReportsLinks to the Center for Engineering Strong Motion Data, Internet Quick Reports and Internet Data Reports, ShakeMaps, and SMIP Seminar information.
MapsMapsLooking for California geologic maps? Start here.
Publication AnnouncementsPublication AnnouncementsRelease announcements of maps, reports and other publications of the California Geological Survey.
Publications of the California Geological SurveyPublications of the California Geological SurveyOfficial directory of publications we've produced from the late 19th century to the present.

California Geological Survey
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 Contact Us

California Geological Survey
715 P Street, MS 1901
Sacramento, CA 95814