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3 datasets
National Hydrography Data - NHD and 3DHP
- Published by: California Department of Water Resources
- Last updated: Sunday, June 14, 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...
Hydrography Presentations
- Published by: California Department of Water Resources
- Last updated: Sunday, June 14, 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...
National Hydrography Data - NHD and 3DHP
- Published by: California Department of Water Resources
- Last updated: Sunday, June 14, 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...