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89 datasets

CGS Information Warehouse: Mineral Land Classification Maps (SMARA Petitions)

Published by: California Department of Conservation
Last updated: Saturday, June 7, 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...

CGS Mineral Hazards: Indoor Radon Potential Study Areas

Published by: California Department of Conservation
Last updated: Saturday, June 7, 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 Mineral Hazards: Indoor Radon Potential Zones

Published by: California Department of Conservation
Last updated: Saturday, June 7, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This digital layer contains polygons (vector format) of portions of California designated as having high, moderate, low, or unknown potential for home...

CGS Information Warehouse: Landslide Maps and Reports

Published by: California Department of Conservation
Last updated: Saturday, June 7, 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 Seismic Hazards Program: Landslide Zones

Published by: California Department of Conservation
Last updated: Saturday, June 7, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

This is a digital Seismic Hazard Zone Map presenting areas where liquefaction and landslides may occur during a strong earthquake. Three types of geol...

CGS Seismic Hazards Program: Alquist-Priolo Fault Hazard Zones

Published by: California Department of Conservation
Last updated: Saturday, June 7, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

This data set contains the Alquist-Priolo Earthquake Fault Zones as shown on the Official Alquist-Priolo Earthquake Fault Zones Maps. The dataset is c...

CGS Seismic Hazards Program: Unevaluated Areas

Published by: California Department of Conservation
Last updated: Saturday, June 7, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

This is a digital Seismic Hazard Zone Map presenting areas where liquefaction and landslides may occur during a strong earthquake. Three types of geol...

CGS Information Warehouse: Regulatory Maps

Published by: California Department of Conservation
Last updated: Friday, June 6, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

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

CGS Map Sheet 48: National Loss from Earthquake Damage, Conterminous United States (2014 Estimate)

Published by: California Department of Conservation
Last updated: Saturday, June 7, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

"Annualized Earthquake Losses (AEL) are economic losses from earthquake shaking-related building damage. These data use the most recent National ...

WellSTAR Oil and Gas Facilities: Pits and Sumps

Published by: California Department of Conservation
Last updated: Saturday, June 7, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This online map displays facility sites in group or by facility types in separate layers: including pits and sumps.CalGEM is the Geologic Energy Manag...