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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: AL, Administrative watershed units, Alabama, Alcorn County, Area of Complex Channels, All tags...
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The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit data consistent with the national criteria for delineation and resolution. It defines the areal extent of surface water drainage to a point except in coastal or lake front areas where there could be multiple outlets as stated by the "Federal Standards and Procedures for the National Watershed Boundary Dataset (WBD)" "Standard" (https://pubs.usgs.gov/tm/11/a3/). Watershed boundaries are determined solely upon science-based hydrologic principles, not favoring any administrative boundaries or special projects, nor particular program or agency. This dataset represents the hydrologic unit boundaries to the 12-digit (6th level)...
Tags: 10-digit, 12-digit, 14-digit, 16-digit, 2-digit, All tags...


map background search result map search result map USGS National Hydrography Dataset (NHD) Best Resolution for Alabama 20160411 State or Territory FileGDB 10.1 - Flowlines USGS Topo Map Vector Data (Vector) 11989 Depauw, Indiana 20190703 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 16374 Freeport, Ohio 20200225 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 29358 Millersburg, Kentucky 20190830 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 35431 Piqua, Kentucky 20190826 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 37841 Richmond, Ohio 20200225 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 45225 Tippecanoe, Ohio 20200224 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 11146 Cynthiana, Kentucky 20190829 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 24217 Laconia, Indiana 20190704 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 24901 Lanesville, Indiana 20190704 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 25031 Lassater, Texas 20190722 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 34029 Palmyra, Indiana 20190704 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 69959 Easton, Texas 20190723 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 19430 Harris Chapel, Texas 20190724 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 41800 Smithland, Texas 20190723 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 34833 Persia, Iowa 20190321 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 35442 Pisgah, Iowa 20190321 for 7.5 x 7.5 minute Shapefile USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 03 (published 20201030) USGS Topo Map Vector Data (Vector) 3525 Bethany, Missouri 20210623 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 44469 Tekamah, Nebraska 20210714 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 11989 Depauw, Indiana 20190703 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 16374 Freeport, Ohio 20200225 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 29358 Millersburg, Kentucky 20190830 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 35431 Piqua, Kentucky 20190826 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 37841 Richmond, Ohio 20200225 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 45225 Tippecanoe, Ohio 20200224 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 11146 Cynthiana, Kentucky 20190829 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 24217 Laconia, Indiana 20190704 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 24901 Lanesville, Indiana 20190704 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 25031 Lassater, Texas 20190722 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 34029 Palmyra, Indiana 20190704 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 69959 Easton, Texas 20190723 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 19430 Harris Chapel, Texas 20190724 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 41800 Smithland, Texas 20190723 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 34833 Persia, Iowa 20190321 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 35442 Pisgah, Iowa 20190321 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 3525 Bethany, Missouri 20210623 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 44469 Tekamah, Nebraska 20210714 for 7.5 x 7.5 minute FileGDB 10.1 USGS National Hydrography Dataset (NHD) Best Resolution for Alabama 20160411 State or Territory FileGDB 10.1 - Flowlines USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 03 (published 20201030)