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141 datasets

Surface Water - Freshwater Harmful Algal Blooms

Published by: California State Water Resources Control Board
Last updated: Friday, July 3, 2026
File types: PDF, CSV

Freshwater harmful algal bloom (HAB) data from the Freshwater Harmful Algal Bloom (FHAB) data system. The FHAB data system is the California State Wat...

Bighorn Sheep Hunt Zones [ds784]

Published by: California Department of Fish and Wildlife
Last updated: Thursday, July 2, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Hunting Zone Boundaries for Bighorn Sheep See: http://www.dfg.ca.gov/wildlife/Bighorn/ for details about the Bighorn Sheep Management Program NOTE: Hu...

Conserved Areas Explorer

Published by: California Natural Resources Agency
Last updated: Saturday, June 27, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

California Nature Conserved Areas Explorer The Conserved Areas Explorer is a web application enabling users to investigate a synthesis of the best ava...

30x30 Conserved Areas, Terrestrial (2023)

Published by: California Natural Resources Agency
Last updated: Saturday, June 27, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The Terrestrial 30x30 Conserved Areas map layer was developed by the CA Nature working group, providing a statewide perspective on areas managed for t...

30x30 Conserved Areas, Terrestrial (2022)

Published by: California Natural Resources Agency
Last updated: Saturday, June 27, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

The Terrestrial 30x30 Conserved Areas map layer was developed by the CA Nature working group, providing a statewide perspective on areas managed for t...

30x30 Conserved Areas, Terrestrial (2024)

Published by: California Natural Resources Agency
Last updated: Saturday, June 27, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

The Terrestrial 30x30 Conserved Areas map layer was developed by the CA Nature working group, providing a statewide perspective on areas managed for t...

Water Quality - Effluent - Electronic Self-Monitoring Report (eSMR) Data

Published by: California State Water Resources Control Board
Last updated: Thursday, July 2, 2026
File types: PDF, ZIP, CSV

Wastewater discharges are regulated by the Water Board. Those regulated are generally required to submit Self-Monitoring Reports to the State or Regio...

DWR Airborne Electromagnetic (AEM) Surveys Data

Published by: California Department of Water Resources
Last updated: Thursday, July 2, 2026
File types: PDF, AGOL, ZIP, FILE GEODATABASE OR SHAPEFILE, SHP

*Back to [Basin Characterization Program webpage](https://data.cnra.ca.gov/dataset/dwr-basin-characterization "Basin Characterization Program webpage"...

National Hydrography Data - NHD and 3DHP

Published by: California Department of Water Resources
Last updated: Thursday, July 2, 2026
File types: WEBSITE, ARCGIS GEOSERVICES REST API, PDF, ZIP, CSV

The USGS National Hydrography Dataset (NHD) downloadable data collection from The National Map (TNM) is a comprehensive set of digital spatial data th...

CalEnviroScreen 2.0

Published by: California Office of Environmental Health Hazard Assessment
Last updated: Wednesday, October 23, 2019
File types: CSV, XLSX, PDF

The Office of Environmental Health Hazard Assessment (OEHHA), on behalf of the California Environmental Protection Agency (CalEPA), developed Californ...