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External Data Sources
   Search for "Hydrologic Units" - The top results (relevance sort) are listed below:
\"NC6 Results beginning with...
  • 12-Digit Hydrologic Units
  • Ecosystem Enhancement Program Local Watershed Plans
  • NC OneMap Watersheds - Map Service

  • \"ArcGIS394 Results beginning with...
  • USDOI USGS Watershed Boundary Dataset
  • Hydrologic unit boundary layer (12-digit) for Illinois Valley Landscape Assessment (Data Basin Dataset)
  • Hydrologic Unit Boundaries, 6th level (HUC6) - Washington (Data Basin Dataset)

  • \"geo.data.gov\"218 Results beginning with...
  • WaterWatch -- Current Water Resources Conditions
  • CalWater 2.2
  • USGS National Hydrography Dataset (NHD) Downloadable Data Collection - National Geospatial Data Asset (NGDA) National Hydrography Dataset (NHD)

  • \"WeoGeo0 Results
       US Government Maintained Portal:  GeoPlatform.gov
       Other Data Sources, incl. Commercial and International: NSGIC GIS Inventory  |  CIESIN World Data Center

    NCSU Data Collection

    [ Hide ] Possible Related Terms:
    Aquifers, Arsenic, Bodies Of Water, Dams, Drainage Areas, Glaciers, Groundwater, Ground Water Climate Response Network, Habitat Restorations, Hydrography, Hydrology, Inland Waters, Local Government, National Atlas, Planning, River Basins, River Sub-basins, River Subbasin, Sea Ice, States, Streamflow, Streams, Surface Hydrography, Surface Water Sampling Sites, Targeted Watersheds, Watersheds, Water Use Statistics, Wetlands, Wetlands Restoration

    Important Legacy denotes outdated data. A more recent version likely exists. Consider an "External Data Source" option linked above, or click the Collection link for updated source options.
    TitleDateSorted in Descending OrderCollectionExtentScaleMD
    National Atlas: Water DataDates Vary National AtlasUnited States Varies Metadata Link
    Local Watershed Plans - EEP
    Legacy
    2006 NC OneMap - 3/12/2007North Carolina 1:24000 Metadata Link
    Targeted Local Watersheds - EEP
    Legacy
    2006 NC OneMap - 3/12/2007North Carolina 1:24000 Metadata Link
    Ecosystem Enhancement Program Targeted Local Watersheds
    Legacy
    2005 NC OneMap - 3/25/2008North Carolina 1:24,000 Metadata Link
    Ecosystem Enhancement Program Local Watershed Plans
    Legacy
    2005 NC OneMap - 3/25/2008North Carolina 1:24,000 Metadata Link
    CGIA: 14 digit hydrologic units
    Legacy
    2004 BasinPro 8North Carolina 1:24,000 Metadata Link
    CGIA: River basins
    Legacy
    2004 BasinPro 8North Carolina 1:24,000 Metadata Link
    CGIA: Subbasins
    Legacy
    2004 BasinPro 8North Carolina 1:24,000 Metadata Link
    CGIA: Priority wetland subbasins
    Legacy
    2004 BasinPro 8North Carolina 1:24,000 Metadata Link
    CGIA: Wetland Restoration Program: Targeted local watersheds
    Legacy
    2004 BasinPro 8North Carolina 1:24,000 Metadata Link
    Hydrologic Units - Line
    Legacy
    1998 NC OneMap - 3/12/2007North Carolina 1:24000 Metadata Link
    Hydrologic Units - Polygon
    Legacy
    1998 NC OneMap - 3/12/2007North Carolina 1:24000 Metadata Link
    Hydrologic Units - River Basins
    Legacy
    1998 NC OneMap - 3/12/2007North Carolina 1:24000 Metadata Link
    Hydrologic Units - Sub Basins
    Legacy
    1998 NC OneMap - 3/12/2007North Carolina 1:24000 Metadata Link
    EPA BASINS: Hydrologic Unit Boundaries of the Conterminous United States
    Legacy
    1998 EPA BASINSConterminous United States 1:250,000 Metadata Link
    Geochemical Atlas: Hydrologic Units
    Legacy
    1998 National Geochemical AtlasConterminous United States 1:5,000,000  
    CGIA: Hydrologic Units
    Legacy
    1994 CGIANorth Carolina 1:24,000 Metadata Link
    CGIA: Hydrologic Units: Riverbasins
    Legacy
    1994 CGIANorth Carolina 1:24,000 Metadata Link
    CGIA: Hydrologic Units: Subbasins
    Legacy
    1994 CGIANorth Carolina 1:24,000 Metadata Link
    Hydrologic Units (1:250,000)
    Legacy
    1994 United States 1:250,000 Metadata Link
    CMAP: Hydrologic Units of the Conterminous U.S. (1:250,000)
    Legacy
    1994 C-MAPConterminous United States 1:250,000 Metadata Link
    NRCS: 8 Digit Hydrologic Unit Boundaries for the Conterminous United States
    Legacy
    1994 State of the LandUnited States 1:2,000,000 Metadata Link
    NRCS: 8 Digit Hydrologic Unit and State Boundaries for the Conterminous United States
    Legacy
    1994 State of the LandUnited States 1:2,000,000 Metadata Link