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90 datasets

CGS Alquist Priolo Fault Zones

Published by: California Department of Conservation
Last updated: Thursday, January 29, 2026
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...

RegMapsLinks 20251120

Published by: California Department of Conservation
Last updated: Thursday, January 29, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

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

Regulatory Maps

Published by: California Department of Conservation
Last updated: Thursday, January 29, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

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

CGS Map Sheet 58: Deep-Seated Landslide Susceptibility

Published by: California Department of Conservation
Last updated: Wednesday, January 28, 2026
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...

DMR Lead Agencies

Published by: California Department of Conservation
Last updated: Wednesday, January 28, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Boundaries of lead agencies responsible under SMARA for regulating mine reclamation....

Primacy Aquifer Exemptions

Published by: California Department of Conservation
Last updated: Thursday, January 29, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This dataset is a partial rendition of the CalGEM (formerly the California Division of Oil, Gas, and Geothermal Resources) publication called Californ...

Primacy Aquifer Exemptions

Published by: California Department of Conservation
Last updated: Thursday, January 29, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This dataset is a partial rendition of the CalGEM (formerly the California Division of Oil, Gas, and Geothermal Resources) publication called Californ...

CGS Information Warehouse: Mineral Lands Classification

Published by: California Department of Conservation
Last updated: Wednesday, January 28, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

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

Well Finder

Published by: California Department of Conservation
Last updated: Wednesday, January 28, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

The Geologic Energy Management Division's (CalGEM) online mapping application Well Finder presents California’s oil and gas industry informati...

Map Sheet 48 (2025 update) - MMI from PGV (2% in 50 years)

Published by: California Department of Conservation
Last updated: Wednesday, January 28, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

The California Geological Survey (CGS) Map Sheet 48 (MS48) provides a depiction of expected ground shaking intensity from future earthquakes across th...