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CGS Seismic Hazards Program: Landslide Zones
This is a digital Seismic Hazard Zone Map presenting areas where liquefaction and landslides may occur during a strong earthquake. Three types of geological hazards, referred to... -
California Landslide Inventory and Deep Landslide Susceptiblity
California Landslide InventoryThe statewide landslide map database shows many of the landslides mapped by CGS and others over the past 50 years. Each feature includes a database... -
Hydraulic Fracturing
This online map locates the wells that have NOI records in the CalGEM WellSTAR database, and provides well NOI information including operator, lease, Notice of Intention (NOI),... -
Earthquake Zones of Required Investigation
The California Earthquake Hazards Zone Application ("EQ Zapp") is an online map that allows anyone with a computer, tablet or smartphone to conveniently check whether a... -
Well Finder
The Geologic Energy Management Division's (CalGEM) online mapping application Well Finder presents California’s oil and gas industry information from the geographic... -
California Important Farmland: Most Recent
This dataset may be a mix of two years and is updated as the data is released for each county. For example, one county may have data from 2014 while a neighboring county may... -
CGS Information Warehouse: Mineral Land Classification Maps (SMARA Study Areas)
Mineral Land Classification studies are produced by the State Geologist as specified by the Surface Mining and Reclamation Act (SMARA, PRC 2710 et seq.) of 1975. To address... -
CGS Seismic Hazards Program: Unevaluated Areas
This is a digital Seismic Hazard Zone Map presenting areas where liquefaction and landslides may occur during a strong earthquake. Three types of geological hazards, referred to... -
DMR All Mines
This service presents location, status, and other information regarding mining operations regulated under the Surface Mining and Reclamation Act of 1975 (SMARA) in California.... -
WellSTAR Notices and Permits: Well Permits
This online map provides the locations of submitted Well Permit records from CalGEM’s Well Statewide Tracking and Reporting System (WellSTAR) database. Records contain... -
WellSTAR: Notices
This online map locates the wells that have NOI records in the CalGEM WellSTAR database, and provides well NOI information including operator, lease, Notice of Intention (NOI),... -
Public Land Survey System (PLSS): Sections
In support of new permitting workflows associated with anticipated WellSTAR needs, the CalGEM GIS unit extended the existing BLM PLSS Township & Range grid to cover offshore... -
California Important Farmland: 1998
Established in 1982, Government Code Section 65570 mandates FMMP to biennially report on the conversion of farmland and grazing land, and to provide maps and data to local... -
WellSTAR Notices and Permits: Well Stimulation Permits
This online map provides the locations of submitted Well Stimulation Permit records from CalGEM’s Well Statewide Tracking and Reporting System (WellSTAR) database. Records... -
CalGEM District Boundaries
District boundaries for the Geologic Energy Management Division in the California Department of Conservation. CalGEM is the Geologic Energy Management Division of the California... -
CGS Seismic Hazards Program: Liquefaction Zones
This is a digital Seismic Hazard Zone Map presenting areas where liquefaction may occur during a strong earthquake. Developers of properties falling within a seismic hazard zone... -
WellSTAR: Oil and Gas Wells
This online map represents oil and gas wells in the CalGEM Well Statewide Tracking and Reporting System, or WellSTAR. Wells are displayed by well type and well status.CalGEM is...
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