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15 datasets for “subwatershed”

  1. Data.gov Catalog

    10-digit HU (Watershed)

    State of OregonUpdated 1 May 2024

    Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U …

    • CSV
    • VND.GEO+JSON
    • VND.GOOGLE-EARTH.KML+XML
    • ZIP
    • HTML
    • JSON
  2. Data.gov Catalog

    4-digit HU (Subregion)

    State of OregonUpdated 1 May 2024

    Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U …

    • CSV
    • VND.GEO+JSON
    • VND.GOOGLE-EARTH.KML+XML
    • ZIP
    • HTML
    • JSON
  3. Data.gov Catalog

    Watershed Boundary Dataset (WBD) (2 through 12-digit hydrologic unit)

    State of OregonUpdated 1 May 2024

    Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U …

    • HTML
    • JSON
  4. Data.gov Catalog

    16-digit HU

    State of OregonUpdated 1 May 2024

    Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U …

    • CSV
    • VND.GEO+JSON
    • VND.GOOGLE-EARTH.KML+XML
    • ZIP
    • HTML
    • JSON
  5. Socrata networkLive preview

    Nitrogen Buffer Priority

    opendata.maryland.govUpdated 22 Jul 2025

    The Natural Filter Buffer Priorities for Water Quality (Nitrogen) layers identify priority forest/grass buffer opportunities by subwatershed …

    • CSV
    • JSON
    • SODA API
  6. Socrata networkLive preview

    Phosphorus Sediment Buffer Priority

    opendata.maryland.govUpdated 25 Jul 2025

    … layers identify priority forest/grass buffer opportunities by subwatershed (MD HUC 8). The Natural Filter Buffer Targeting layers …

    • CSV
    • JSON
    • SODA API
  7. Socrata networkLive preview

    Nutrient Wetland Priority

    opendata.maryland.govUpdated 21 Jul 2025

    The Natural Filter Wetland Priorities for Water Quality layers identify priority wetland restoration opportunities by subwatershed (MD HUC …

    • CSV
    • JSON
    • SODA API
  8. California Open Data

    Watershed Boundary Dataset (WBD)

    California Department of Water ResourcesUpdated 11 Nov 2026

    … defined by Regions, Subregions, Basins, Subbasins, Watersheds, and Subwatersheds. For additional information on the WBD, go to https …

    • FILE GEODATABASE OR SHAPEFILE
    • ARCGIS GEOSERVICES REST API
    • WEBSITE
    • PDF
  9. Open Government Canada

    Project Returns for Riparian Area Assessment of Red Deer River Watershed

    Government of Alberta | Gouvernement de l'AlbertaUpdated 4 Mar 2026

    … These seven subwatersheds cover an area of ~22,904 km2 and are located in central Alberta, roughly between …

    • HTML
    • XML
    • ZIP
  10. Data.gov Catalog

    Continuous meteorological and soil data to support understanding of nutrient and sediment loads from overland and subsurface-tile flow at paired edge-of-field agricultural sites, 2015–21, Black Creek watershed, near Harlan, Indiana, USA

    U.S. Geological SurveyUpdated 17 May 2023

    … monitored at a site in the Black Creek subwatershed near Harlan, Allen County, Indiana (USGS 411228084541703 MET STATION …

    • XML
  11. Data.gov Catalog

    LANID: Landsat-based irrigation dataset for CONUS 2018-20

    U.S. Geological SurveyUpdated 26 Sept 2024

    … Geological Survey (USGS) Watershed Boundary Dataset of Subwatersheds (Hydrologic Unit Code 12 [HUC12]) in the conterminous United States …

    • XML
  12. Data.gov Catalog

    Forests to Faucets 2.0

    U.S. Forest ServiceUpdated 31 Oct 2024

    … The project assesses subwatersheds across the US to identify those important to downstream surface drinking water supplies as …

    • ARCGIS GEOSERVICES REST API
    • CSV
    • GEOJSON
    • KML
    • ZIP
    • WEB PAGE
    • +1
  13. Data.gov Catalog

    Aqua INHABIT species potential distribution across the contiguous United States

    U.S. Geological SurveyUpdated 23 Jan 2026

    … We also calculated subwatersheds (Hydrologic Unit Code [HUC] 12) summaries of information related to pathways of spread, finally …

    • XML
  14. Data.gov Catalog

    EnviroAtlas - Atmospheric Nitrogen and Sulfur Deposition by 12-digit HUC for the Conterminous United States (2017)

    U.S. EPA Office of Research and Development (ORD) - Center for Public Health and Environmental Assessment (CPHEA)Updated 23 Jul 2025

    This EnviroAtlas dataset includes annual nitrogen and sulfur deposition within each 12-digit HUC subwatershed for the year …

    • ZIP
    • HTML
  15. Data.gov Catalog

    River Corridors (August, 2019)

    Watershed Management DivisionUpdated 24 Mar 2022

    … River Corridor polygons are divided by subwatershed breaks and by SGA reach/segment breaks. Attributes include SGAT ID …

    • ARCGIS GEOSERVICES REST API
    • WEB PAGE
“subwatershed” datasets · Open Data Finder