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133 datasets

Bank Swallow Monitoring - River Miles [ds21]

Published by: California Department of Fish and Wildlife
Last updated: Thursday, April 9, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This data set uses a shapefile from the California Department of Water Resources which was digitized from the "Sacramento River, Sloughs, and Tributar...

DMUG May 9th 2019

Published by: California Department of Water Resources
Last updated: Thursday, April 9, 2026
File types: PDF

Delta Modeling User Group Meeting presentation materials...

Paleo-Dendrochronological "Tree-Ring" Hydroclimatic Reconstructions for Northern and Southern California River Basins

Published by: California Department of Water Resources
Last updated: Thursday, April 9, 2026
File types: PDF, CSV, ZIP

### Background Tree-ring chronologies allow assessment of hydrologic variability over centuries to millennia, gives historic context for assessing re...

National Hydrography Data - NHD and 3DHP

Published by: California Department of Water Resources
Last updated: Friday, April 10, 2026
File types: PDF, ZIP, WEBSITE, ARCGIS GEOSERVICES REST API, CSV, WEB VIDEOS

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

i17 Levee Centerlines SuisunMarsh

Published by: California Department of Water Resources
Last updated: Thursday, April 9, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Center lines of the Suisun Marsh levee systems. This dataset is a combination of different Suisun Marsh levee datasets that were edited to be accurate...

i03 Local Maintenance Areas Flood Protection

Published by: California Department of Water Resources
Last updated: Thursday, April 9, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Boundaries of various types of public agencies with responsibilities that include in part or primarily flood control, system maintenance, and improvem...

Estimated Inundation Periods in the Yolo Bypass, 1998 – 2022

Published by: California Department of Water Resources
Last updated: Thursday, April 9, 2026
File types:

Largely supported by the Interagency Ecological Program (IEP), California Department of Water Resources (DWR) has operated a fish monitoring program i...

Fish Salvage in State Water Project and Central Valley Project - California

Published by: California Department of Fish and Wildlife
Last updated: Thursday, April 9, 2026
File types: XLSX, ZIP

Two fish protective facilities reduce fish losses associated with water export by the federal Central Valley Project (CVP) and California’s State Wate...

California Native Fish Species by Watershed [ds1353]

Published by: California Department of Fish and Wildlife
Last updated: Thursday, April 9, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

This dataset was created using the 123 PISCES extant species range layers listed below in the table. The PISCES datasets were converted to rasters usi...

California Native Fish Species by Watershed [ds1353]

Published by: California Department of Fish and Wildlife
Last updated: Thursday, April 9, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

This dataset was created using the 123 PISCES extant species range layers listed below in the table. The PISCES datasets were converted to rasters usi...