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335 datasets

National Hydrography Dataset (NHD) Archive

Published by: California Department of Water Resources
Last updated: Sunday, July 26, 2026
File types: ZIP, TXT, FILE GEODATABASE

This page is meant to act as an archival repository for previous versions of the statewide National Hydrography Dataset (NHD) which includes the Water...

National Hydrography Data - NHD and 3DHP

Published by: California Department of Water Resources
Last updated: Sunday, July 26, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

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

National Hydrography Data - NHD and 3DHP

Published by: California Department of Water Resources
Last updated: Sunday, July 26, 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...

Watershed Boundary Dataset (WBD)

Published by: California Department of Water Resources
Last updated: Sunday, July 26, 2026
File types: FILE GEODATABASE OR SHAPEFILE, ARCGIS GEOSERVICES REST API, WEBSITE, PDF

The Watershed Boundary Dataset (WBD) from USGS' The National Map (TNM) defines the perimeter of drainage areas formed by the terrain and other landsca...

Hydrography Presentations

Published by: California Department of Water Resources
Last updated: Sunday, July 26, 2026
File types: PDF, WEB VIDEOS

Slides, handouts, and recordings that have been presented at various conferences, workshops, and webinars by the California National Hydrography Stewa...

Active Transportation Count Dataset

Published by: Caltrans
Last updated: Wednesday, February 18, 2026
File types: PDF, XLSX, CSV

The Pedestrian and Bicycle Count Dataset documents non motorized traffic on state highways, originating from Caltrans district pilots initiated in 202...

Wild and Scenic Rivers, California State Designations Only, 2020

Published by: California Department of Water Resources
Last updated: Sunday, July 26, 2026
File types: ZIP, PDF

California Public Resources Code, Chapter 1.4. California Wild and Scenic Rivers Act, Section 5093.50. It is the policy of the State of California tha...

National Fish Habitat Action Plan (NFHAP) Habitat Condition Indices [ds733]

Published by: California Department of Fish and Wildlife
Last updated: Sunday, July 26, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The mission of the National Fish Habitat Action Plan is to protect, restore, and enhance the nation's fish and aquatic communities through partnership...

Potential Riparian Connections - CEHC [ds622]

Published by: California Department of Fish and Wildlife
Last updated: Sunday, July 26, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

A product of the California Essential Habitat Connectivity Project - http://www.dfg.ca.gov/habcon/connectivity/, potential riparian connections were e...

National Highway System

Published by: Caltrans
Last updated: Sunday, July 26, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The National Highway System consists of a network of roads important to the economy, defense and mobility. On October 1, 2012 the existing National Hi...