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922 datasets

STDs in California by Disease, County, Year, and Sex

Published by: California Department of Public Health
Last updated: Saturday, May 23, 2026
File types: CSV, ZIP

These data contain case counts and rates for sexually transmitted diseases (chlamydia, gonorrhea, and early syphilis which includes primary, secondary...

State Water Project Routine Water Quality Monitoring

Published by: California Department of Water Resources
Last updated: Saturday, May 23, 2026
File types: CSV, LINK, PDF

The California State Water Project (SWP) is one of the nation’s largest water conveyance projects. Its geographic extent stretches from Sierra Nevada ...

CGS SHZ Unevaluated Areas

Published by: California Department of Conservation
Last updated: Saturday, May 23, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

This is a digital Seismic Hazard Zone Map presenting areas where liquefaction and landslides may occur during a strong earthquake. Three types of geol...

Statewide Crop Mapping

Published by: California Department of Water Resources
Last updated: Saturday, May 23, 2026
File types: DATA, ZIP, PDF, REST SERVICE, GDB, SHP, STORY MAPS

The California Department of Water Resources (DWR) has been collecting land use data throughout the state and using it to produce agricultural water u...

Warner Mountains Aerial Photos - 1994 [ds53]

Published by: California Department of Fish and Wildlife
Last updated: Saturday, May 23, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

This is a layer of aerial photos acquired from the Modoc National Forest with photo dates throughout the summer of 1994, scanned and orthorectified by...

California Water Rights Uses and Seasons

Published by: California State Water Resources Control Board
Last updated: Friday, August 29, 2025
File types: CSV, XLSX, DOCX, PDF

This list includes detail information for water rights beneficial uses and seasons as stored in the State Water Resources Control Board's "Electronic ...

RegMapsLinks 20251120

Published by: California Department of Conservation
Last updated: Saturday, May 23, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The Alquist-Priolo Earthquake Fault Zoning Act (1972) and the Seismic Hazards Mapping Act (1990) direct the State Geologist to delineate regulatory &q...

i12 Canals and Aqueducts local

Published by: California Department of Water Resources
Last updated: Saturday, May 23, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Dataset represents centerlines of major water project canals that are managed by local area government agencies or entities. This dataset does not con...

Aspen Stands - Warner Mountain [ds112]

Published by: California Department of Fish and Wildlife
Last updated: Saturday, May 23, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This dataset displays aspen stands in the Warner Mountains south of State Highway 299. The 1946 and 1994 data are presented as polygons depicting aspe...

Historical Electrofishing Monitoring Red Bluff Fisheries - Antelope, Mill and Deer Creeks

Published by: California Department of Fish and Wildlife
Last updated: Saturday, May 23, 2026
File types: XLSX, ZIP

This database contains data on e-fishing results for monitoring conducted in various streams (primarily Antelope, Mill and Deer Creeks) by Red Bluff C...