CGS Library

Interior view of the CGS Library

The CGS Library has over 100,000 books, reports, maps, photographs, U.S. Geological Survey publications, and periodicals, in addition to our core collection of CGS Publications, including those no longer available for purchase. The Library is open to the public for reference and research; materials may be borrowed through interlibrary loan only.

RELATED: How to order CGS Publications

Library Catalog

The Department of Conservation has contracted with SirsiDynix to provide an online catalog of the CGS Library. This link will open the CGS Library Catalog in a new window.

Please report catalog issues and errors to the CGS librarian and the webmaster.

Hours of Operation

The CGS Library is open by appointment only. Please call to schedule a visit.

Contact Information

  • Telephone: 916-327-1850
  • Email:
  • Mailing Address: 715 P Street, MS 1902, Sacramento, CA 95814-3532, USA
  • Physical Location: 801 K Street, 14th Floor, Sacramento, California

About the CGS Library

Under several different names, the California Geological Survey Library has been in existence since 1880 and has developed into an extensive collection of scientific and technical materials on Earthquakes, Engineering Geology, Environmental Geology, Geology of California, Geomorphology, Groundwater, Hydrogeology, Landslides, Mapping, Mined Land Reclamation, Mineral Resources, Mining, Seismology, Soil Mineralogy, Structural Geology, Tectonics, Water Resources and Volcanology. The Library is a designated State Earth Science Information Center (ESIC), under an agreement with the U.S. Geological Survey, tasked to respond to requests for earth science information.

CGS Publications

Physical copies of CGS Publications may be viewed in person at the California Geological Survey Library in Sacramento, and at the following libraries:

  • California State Library (Sacramento)
  • California State Universities at Chico, Long Beach, and San Diego
  • Fresno County Public Library
  • Los Angeles Public Library
  • San Diego Public Library
  • San Francisco Public Library
  • Stanford University (Palo Alto)
  • University of California at Berkeley, Davis, Los Angeles, San Diego, and Santa Barbara.

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