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2521 datasets

Three Nautical Mile State Maritime Limit - R7 - CDFW [ds3158]

Published by: California Department of Fish and Wildlife
Last updated: Sunday, June 14, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This line was generated from NOAAs 3 nautical mile offshore maritime limit line clipped to California state waters. NOAAs Office of Coast Survey (OCS)...

Conservation Opportunities Modeler

Published by: California Natural Resources Agency
Last updated: Saturday, June 13, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

Please visit the User Guide to learn about using the Conservation Opportunities Modeler.CA Nature supports the California Natural Resources Agency’s g...

2023TulareFloodingIncident Flood Structure Status Map

Published by: CAL FIRE
Last updated: Sunday, June 14, 2026
File types: HTML

This map feeds into a web app that allows a user to examine the known status of structures damaged by the flooding. If a structure point does not appe...

30x30 Ecoregions

Published by: California Natural Resources Agency
Last updated: Saturday, June 13, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

This layer contains polygon features of Ecological Units for the state of California as described by ECOMAP (1993) "... mapped based on associati...

CalOES Administrative Regions

Published by: California Office of Emergency Services
Last updated: Sunday, June 14, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The California Governor’s Office of Emergency Services’ (Cal OES) Regions and MARs feature layer is a graphical representation Administrative Regions ...

California Electric Balancing Authority Areas (Retired)

Published by: California Energy Commission
Last updated: Saturday, June 13, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

A balancing authority is responsible for operating a transmission control area. It matches generation with load and maintains consistent electric freq...

SSWP Cultural Resources

Published by: California Department of Water Resources
Last updated: Sunday, June 14, 2026
File types: ZIP

The SSWP Cultural Resources Study is one of many relicensing documents for the South SWP (SSWP) Hydropower Project Number 2426. The California Departm...

DCP Tribal Resources

Published by: California Department of Water Resources
Last updated: Sunday, June 14, 2026
File types: ZIP

The DCP Tribal Resources Study is one of many relicensing documents for the Devil Canyon Project (DCP) Hydropower Project Number 14797. The California...

California County Boundaries and Identifiers with Coastal Buffers

Published by: California Department of Technology
Last updated: Wednesday, October 1, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

Note: The schema changed in February 2025 - please see below. We will post a roadmap of upcoming changes, but service URLs and schema are now stable. ...

California County Boundaries and Identifiers

Published by: California Department of Technology
Last updated: Wednesday, October 1, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

Note: The schema changed in February 2025 - please see below. We will post a roadmap of upcoming changes, but service URLs and schema are now stable. ...