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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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These vector contour lines are derived from the 3D Elevation Program using automated and semi-automated processes. They were created to support 1:24,000-scale CONUS and Hawaii, 1:25,000-scale Alaska, and 1:20,000-scale Puerto Rico / US Virgin Island topographic map products, but are also published in this GIS vector format. Contour intervals are assigned by 7.5-minute quadrangle, so this vector dataset is not visually seamless across quadrangle boundaries. The vector lines have elevation attributes (in feet above mean sea level on NAVD88), but this dataset does not carry line symbols or annotation.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
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These vector contour lines are derived from the 3D Elevation Program using automated and semi-automated processes. They were created to support 1:24,000-scale CONUS and Hawaii, 1:25,000-scale Alaska, and 1:20,000-scale Puerto Rico / US Virgin Island topographic map products, but are also published in this GIS vector format. Contour intervals are assigned by 7.5-minute quadrangle, so this vector dataset is not visually seamless across quadrangle boundaries. The vector lines have elevation attributes (in feet above mean sea level on NAVD88), but this dataset does not carry line symbols or annotation.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.


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) 19006 Halls Bluff TX (published 20220819) FileGDB USGS Topo Map Vector Data (Vector) 21837 Indian Lake TX (published 20220823) Shapefile USGS Topo Map Vector Data (Vector) 34563 Pearsons Chapel TX (published 20220823) Shapefile USGS Topo Map Vector Data (Vector) 49983 Wyser Bottom TX (published 20220822) FileGDB USGS Topo Map Vector Data (Vector) 15773 Forest TX (published 20220823) Shapefile USGS Topo Map Vector Data (Vector) 18137 Grapeland TX (published 20220823) FileGDB USGS Topo Map Vector Data (Vector) 24064 La Crescent, Minnesota 20220501 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 40943 Sheldon, Minnesota 20220506 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 12521 Donalsonville West, Georgia 20200915 for 7.5 x 7.5 minute Shapefile USGS NED 1/3 arc-second Contours for La Crosse W, Wisconsin 20220429 1 X 1 degree FileGDB 10.1 USGS NED 1/3 arc-second Contours for Macon W, Georgia 20200914 1 X 1 degree Shapefile USGS US Topo 7.5-minute map for Midland City, AL 2018 USGS US Topo 7.5-minute map for Weches, TX 2019 USGS US Topo 7.5-minute map for Perry East, GA 2020 USGS US Topo 7.5-minute map for Madrid, AL 2020 US Topo 7.5-minute map for Caledonia, MN US Topo 7.5-minute map for Crockett, TX US Topo 7.5-minute map for Pearsons Chapel, TX US Topo 7.5-minute map for Stanmire Lake, TX USGS Topo Map Vector Data (Vector) 19006 Halls Bluff TX (published 20220819) FileGDB USGS Topo Map Vector Data (Vector) 21837 Indian Lake TX (published 20220823) Shapefile USGS Topo Map Vector Data (Vector) 34563 Pearsons Chapel TX (published 20220823) Shapefile USGS Topo Map Vector Data (Vector) 49983 Wyser Bottom TX (published 20220822) FileGDB USGS Topo Map Vector Data (Vector) 15773 Forest TX (published 20220823) Shapefile USGS Topo Map Vector Data (Vector) 18137 Grapeland TX (published 20220823) FileGDB USGS Topo Map Vector Data (Vector) 24064 La Crescent, Minnesota 20220501 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 40943 Sheldon, Minnesota 20220506 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 12521 Donalsonville West, Georgia 20200915 for 7.5 x 7.5 minute Shapefile USGS US Topo 7.5-minute map for Midland City, AL 2018 USGS US Topo 7.5-minute map for Weches, TX 2019 USGS US Topo 7.5-minute map for Perry East, GA 2020 USGS US Topo 7.5-minute map for Madrid, AL 2020 US Topo 7.5-minute map for Caledonia, MN US Topo 7.5-minute map for Crockett, TX US Topo 7.5-minute map for Pearsons Chapel, TX US Topo 7.5-minute map for Stanmire Lake, TX USGS NED 1/3 arc-second Contours for La Crosse W, Wisconsin 20220429 1 X 1 degree FileGDB 10.1 USGS NED 1/3 arc-second Contours for Macon W, Georgia 20200914 1 X 1 degree Shapefile USGS National Hydrography Dataset (NHD) Best Resolution for Alabama 20160411 State or Territory FileGDB 10.1 - Flowlines