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106 datasets

DMR All Mines

Published by: California Department of Conservation
Last updated: Friday, July 31, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, OGC WFS, CSV, ZIP, GEOJSON, KML

This service presents location, status, and other information regarding mining operations regulated under the Surface Mining and Reclamation Act of 1...

WellSTAR: Well Stimulations

Published by: California Department of Conservation
Last updated: Friday, July 31, 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...

CalGEM TR26: Onshore Seeps

Published by: California Department of Conservation
Last updated: Friday, July 31, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This dataset is a digital version of the California Department of Conservation, Geologic Energy Management Division Publication No. TR26, Onshore Oil ...

Hydraulic Fracturing

Published by: California Department of Conservation
Last updated: Friday, July 31, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This online map locates the wells that have NOI records in the CalGEM WellSTAR database, and provides well NOI information including operator, lease, ...

Well Stimulation Permit

Published by: California Department of Conservation
Last updated: Friday, July 31, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This online map locates the wells that have NOI records in the CalGEM WellSTAR database, and provides well NOI information including operator, lease, ...

WellSTAR Oil and Gas Facilities: Tanks

Published by: California Department of Conservation
Last updated: Friday, July 31, 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...

Pit/Sump

Published by: California Department of Conservation
Last updated: Friday, July 31, 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...

Tank

Published by: California Department of Conservation
Last updated: Friday, July 31, 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: Friday, July 31, 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...

CGS Mineral Hazards: Indoor Radon Potential Zones

Published by: California Department of Conservation
Last updated: Friday, July 31, 2026
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...