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State
Earthquake Zones of Required Investigation
State of California —
The California Earthquake Hazards Zone Application ("EQ Zapp") is an online map that allows anyone with a computer, tablet or smartphone to conveniently check... -
State
Primacy Aquifer Exemptions
State of California —
This dataset is a partial rendition of the CalGEM (formerly the California Division of Oil, Gas, and Geothermal Resources) publication called California Oil and Gas... -
State
California Important Farmland Finder
State of California —
This application provides an easy way to calculate the area and type of Important Farmland in an area of interest.Important Farmland Maps are compiled by the Farmland... -
State
Public Land Survey System (PLSS): Township and Range
State of California —
In support of new permitting workflows associated with anticipated WellSTAR needs, the CalGEM GIS unit extended the existing BLM PLSS Township & Range grid to... -
State
CGS Mineral Hazards: Indoor Radon Potential Zones
State of California —
This digital layer contains polygons (vector format) of portions of California designated as having high, moderate, low, or unknown potential for homes to exceed the... -
State
California Important Farmland: 2020
State of California —
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... -
State
CGS Information Warehouse: Regulatory Maps
State of California —
Alquist-Priolo Earthquake Fault Zoning Act (1972) and the Seismic Hazards Mapping Act (1990) direct the State Geologist to delineate regulatory "Zones of Required... -
State
WellSTAR Notices and Permits: Well Stimulation Permits
State of California —
This online map provides the locations of submitted Well Stimulation Permit records from CalGEM’s Well Statewide Tracking and Reporting System (WellSTAR) database.... -
State
WellSTAR: Well Stimulations
State of California —
This online map provides the locations of wells that have been stimulated under an approved Well Stimulation Permit. The map display also provides information related... -
State
CGS Information Warehouse: Landslide Maps and Reports
State of California —
Since the 1960's, the California Geological Survey (CGS) has produced numerous maps that show landslide features and delineate potential slope-stability problem... -
State
CGS Information Warehouse: Regulatory Maps
State of California —
The Alquist-Priolo Earthquake Fault Zoning Act (1972) and the Seismic Hazards Mapping Act (1990) direct the State Geologist to delineate regulatory "Zones of Required... -
State
California Important Farmland: 1992
State of California —
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... -
State
California Important Farmland: 1994
State of California —
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... -
State
California Important Farmland: 2010
State of California —
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... -
State
California Important Farmland: 1990
State of California —
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... -
State
WellSTAR Underground Gas Storage: Project Wells
State of California —
This online map displays California’s active Underground Gas Storage (UGS) projects and wells associated to UGS projects. Project data and well data are provided by... -
State
Geologic Map of California (2010)
State of California —
This edition of the Geologic Map of California was prepared in recognition of the California Geological Survey's 150th Anniversary. It is an all-digital product built...