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    Important Legacy denotes outdated data.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.
    TitleDateCollectionExtentScaleSorted in Ascending OrderMD
    National Hydrography Dataset (NHD)Updated Continually NHD DatasetUnited States NULL Metadata Link
    NCSU Campus: Hydro
    Legacy
    2007 NCSU Campus DataNCSU Campus   
    NCSU Campus: Lakes
    Legacy
    2007 NCSU Campus DataNCSU Campus   
    Hydro-Climatic Data Network: A U.S. Geological Survey Streamflow Data Set for the United States for the Study of Climate Variations, 1874-1988
    Legacy
    1992 Conterminous United States   
    CGIA: Hydrology-Lines by River Basin
    Legacy
    2004 BasinPro 8North Carolina 1:24,000 Metadata Link
    CGIA: Hydrology-Polygons by River Basin
    Legacy
    2004 BasinPro 8North 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
    ESRI: U.S. MapData Hydrology
    Legacy
    2004 ESRI® Data & Maps 2004United States 1:100,000 Metadata Link
    Hydro 1K North America: Flow Accumulation
    Legacy
    North America 1:1,000,000  
    Hydro 1K North America: Flow Direction
    Legacy
    North America 1:1,000,000  
    Productive Aquifers of the Conterminous United States
    Legacy
    1999 Conterminous United States 1:7,500,000 Metadata Link
    Ground-water Regions of the Conterminous United States
    Legacy
    1999 Conterminous United States 1:20,000,000 Metadata Link
    Ground-water Regions of the Conterminous United States with Unconsolidated Watercourses
    Legacy
    1999 Conterminous United States 1:20,000,000 Metadata Link


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