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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
California Landslide Inventory and Deep Landslide Susceptiblity
State of California —
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... -
State
CGS Seismic Hazards Program: Landslide Zones
State of California —
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,... -
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
CGS Seismic Hazards Program: Liquefaction Zones
State of California —
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... -
State
California Important Farmland: 2014
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 Oil and Gas Facilities: Pits and Sumps
State of California —
This online map displays facility sites in group or by facility types in separate layers: including pits and sumps.CalGEM is the Geologic Energy Management Division... -
State
Well Stimulation Permit
State of California —
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... -
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... -
State
Oil and Gas Field Administrative Boundaries
State of California —
Administrative boundaries for oil and gas fields in California.CalGEM is the Geologic Energy Management Division of the California Department of Conservation,... -
State
CGS Information Warehouse: Mineral Lands Classification
State of California —
Mineral Land Classification (MLC) studies are produced by the State Geologist as specified by the Surface Mining and Reclamation Act (SMARA, PRC 2710 et seq.) of... -
State
CGS Seismic Hazards Program: Alquist-Priolo Fault Hazard Zones
State of California —
This data set contains the Alquist-Priolo Earthquake Fault Zones as shown on the Official Alquist-Priolo Earthquake Fault Zones Maps. The dataset is comprised of... -
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
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
CalGEM District Boundaries
State of California —
District boundaries for the Geologic Energy Management Division in the California Department of Conservation. CalGEM is the Geologic Energy Management Division of the... -
State
California Important Farmland: 1996
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
WellSTAR Underground Gas Storage: Area of Review 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
WellSTAR Underground Gas Storage: Project Boundaries
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
CGS Mineral Hazards: Indoor Radon Potential Study Areas
State of California —
Study area boundaries for indoor radon potential conducted by the California Geological Survey.