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89 datasets

CGS Information Warehouse: Landslide Maps and Reports

Published by: California Department of Conservation
Last updated: Saturday, February 28, 2026
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...

WellSTAR: Well Stimulations

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

This online map provides the locations of wells that have been stimulated under an approved Well Stimulation Permit. The map display also provides inf...

WellSTAR Notices and Permits: Well Permits

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

This online map provides the locations of submitted Well Permit records from CalGEM’s Well Statewide Tracking and Reporting System (WellSTAR) database...

WellSTAR Notices and Permits: Submitted Notices of Intention

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

This online map provides the locations of submitted Notice of Intention (NOI) records from CalGEM’s Well Statewide Tracking and Reporting System (Well...

WellSTAR Oil and Gas Facilities: Tanks

Published by: California Department of Conservation
Last updated: Saturday, February 28, 2026
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 tanks.CalGEM is the Geologic Energy Management Div...

CGS Map Sheet 58: Deep-Seated Landslide Susceptibility

Published by: California Department of Conservation
Last updated: Friday, February 27, 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...

Earthquake Zones of Required Investigation Maps and Reports

Published by: California Department of Conservation
Last updated: Friday, February 27, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

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

California Important Farmland: 1984-2022

Published by: California Department of Conservation
Last updated: Friday, February 27, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

Established in 1982, Government Code Section 65570 mandates FMMP to biennially report on the conversion of farmland and grazing land, and to provide m...

Tank

Published by: California Department of Conservation
Last updated: Saturday, February 28, 2026
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: 1. All facility types in separate layers including tank, tan...

Public Land Survey System (PLSS): Township and Range

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

In support of new permitting workflows associated with anticipated WellSTAR needs, the CalGEM GIS unit extended the existing BLM PLSS Township & R...