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19 datasets

Geologic Map of California (2010)

Published by: California Department of Conservation
Last updated: Tuesday, July 29, 2025
File types: HTML, ARCGIS GEOSERVICES REST API

This edition of the Geologic Map of California was prepared in recognition of the California Geological Survey's 150th Anniversary. It is an all-digit...

Special Report 230: Geologic Gems of California State Parks

Published by: California Department of Conservation
Last updated: Tuesday, July 29, 2025
File types: HTML, ARCGIS GEOSERVICES REST API

California is a veritable treasure chest of nationally acclaimed natural landmarks and much adored scenery. This geologic legacy on display in the lan...

Fault Activity Map of California (2010)

Published by: California Department of Conservation
Last updated: Tuesday, July 29, 2025
File types: HTML, ARCGIS GEOSERVICES REST API

"This digital database contains the faults shown on the Fault Activity Map of California by Charles W. Jennings and William A. Bryant published i...

California Landslide Inventory and Deep Landslide Susceptiblity

Published by: California Department of Conservation
Last updated: Tuesday, July 29, 2025
File types: HTML, ARCGIS GEOSERVICES REST API

California Landslide InventoryThe statewide landslide map database shows many of the landslides mapped by CGS and others over the past 50 years. Each ...

CGS Information Warehouse: Landslide Maps and Reports

Published by: California Department of Conservation
Last updated: Wednesday, July 30, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Since the 1960's, the California Geological Survey (CGS) has produced numerous maps that show landslide features and delineate potential slope-stabili...

CGS Mineral Hazards: Indoor Radon Potential Study Areas

Published by: California Department of Conservation
Last updated: Tuesday, July 29, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Study area boundaries for indoor radon potential conducted by the California Geological Survey....

CGS Information Warehouse: Tsunami Inundation Maps

Published by: California Department of Conservation
Last updated: Tuesday, July 29, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Produced collectively by tsunami modelers, geologic hazard mapping specialists, and emergency planning scientists from the University of Southern Cali...

CGS Information Warehouse: Regulatory Maps

Published by: California Department of Conservation
Last updated: Tuesday, July 29, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

Alquist-Priolo Earthquake Fault Zoning Act (1972) and the Seismic Hazards Mapping Act (1990) direct the State Geologist to delineate regulatory "...

CGS Map Sheet 58: Deep-Seated Landslide Susceptibility

Published by: California Department of Conservation
Last updated: Tuesday, July 29, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The Susceptibility to Deep-Seated Landslides map covers the entire state of California and was originally published in May of 2011 as CGS Map Sheet 58...

CGS Information Warehouse: Mineral Land Classification Maps (SMARA Study Areas)

Published by: California Department of Conservation
Last updated: Tuesday, July 29, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Mineral Land Classification studies are produced by the State Geologist as specified by the Surface Mining and Reclamation Act (SMARA, PRC 2710 et seq...