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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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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...
Tags: Accomack County, Adams County, Administrative watershed units, Administrative watershed units, Alamance County, All tags...
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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...
Tags: Administrative watershed units, Administrative watershed units, Alexandria County, Area of Complex Channels, Area to be submerged, 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.
Tags: 1 x 1 degree, 1 x 1 degree, Alexandria County, Arlington County, Caroline County, All tags...
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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: Accomack County, Adams County, Administrative watershed units, Alamance County, Albemarle County, All tags...
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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...
Tags: Accomack County, Adams County, Administrative watershed units, Administrative watershed units, Albemarle County, All tags...
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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...
Tags: Administrative watershed units, Administrative watershed units, Area of Complex Channels, Area to be submerged, Arlington County, All tags...
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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...
Tags: Administrative watershed units, Administrative watershed units, Alexandria County, Area of Complex Channels, Area to be submerged, All tags...
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The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated set of geospatial data layers, including the best available National Hydrography Dataset (NHD), the 10-meter 3D Elevation Program Digital Elevation Model (3DEP DEM), and the National Watershed Boundary Dataset (WBD). The NHDPlus HR combines the NHD, 3DEP DEMs, and WBD to create a stream network with linear referencing, feature naming, "value added attributes" (VAAs), elevation-derived catchments, and other features for hydrologic data analysis. The stream network with linear referencing is a system of data relationships applied to hydrographic systems so that one stream reach "flows" into another and "events" can be tied to and traced...
Tags: Accomack County, Adams County, Albemarle County, Alexandria County, Allegany County, All tags...
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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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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...
Tags: Accomack County, Adams County, Administrative watershed units, Administrative watershed units, Alamance County, All tags...
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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...
Tags: Accomack County, Adams County, Administrative watershed units, Administrative watershed units, Alexandria County, 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...
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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...
Tags: Administrative watershed units, Administrative watershed units, Alexandria County, Area of Complex Channels, Area to be submerged, All tags...


map background search result map search result map USGS National Hydrography Dataset (NHD) Best Resolution for West Virginia 20160414 State or Territory FileGDB 10.1 - HUC Watersheds USGS Topo Map Vector Data (Vector) 507 Alexandria, Virginia 20190916 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 507 Alexandria, Virginia 20190916 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 1073 Annandale, Virginia 20190917 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 14949 Falls Church, Virginia 20190917 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 14949 Falls Church, Virginia 20190917 for 7.5 x 7.5 minute Shapefile USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 02 (published 20200628) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 4 - 0207 (published 20200701) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 02070010 (published 20200705) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 02070008 (published 20200706) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 02070010 (published 20200705) USGS NED 1/3 arc-second Contours for Washington W, Maryland 20191212 1 X 1 degree Shapefile NHD 20200616 for Maryland State or Territory FileGDB 10.1 Model Version 2.2.1 NHD 20200615 for Virginia State or Territory FileGDB 10.1 Model Version 2.2.1 NHD 20200615 for Virginia State or Territory Shapefile Model Version 2.2.1 NHD 20200615 for District of Columbia State or Territory FileGDB 10.1 Model Version 2.2.1 USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for 4-digit Hydrologic Unit - 0207 (published 20180813) USGS US Topo 7.5-minute map for Annandale, VA 2019 USGS US Topo 7.5-minute map for Falls Church, VA,MD 2019 USGS US Topo 7.5-minute map for Washington West, DC,MD,VA 2019 USGS Topo Map Vector Data (Vector) 507 Alexandria, Virginia 20190916 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 507 Alexandria, Virginia 20190916 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 1073 Annandale, Virginia 20190917 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 14949 Falls Church, Virginia 20190917 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 14949 Falls Church, Virginia 20190917 for 7.5 x 7.5 minute Shapefile USGS US Topo 7.5-minute map for Annandale, VA 2019 USGS US Topo 7.5-minute map for Falls Church, VA,MD 2019 USGS US Topo 7.5-minute map for Washington West, DC,MD,VA 2019 USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 02070010 (published 20200705) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 02070010 (published 20200705) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 02070008 (published 20200706) USGS NED 1/3 arc-second Contours for Washington W, Maryland 20191212 1 X 1 degree Shapefile NHD 20200615 for District of Columbia State or Territory FileGDB 10.1 Model Version 2.2.1 USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 4 - 0207 (published 20200701) USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for 4-digit Hydrologic Unit - 0207 (published 20180813) NHD 20200616 for Maryland State or Territory FileGDB 10.1 Model Version 2.2.1 NHD 20200615 for Virginia State or Territory FileGDB 10.1 Model Version 2.2.1 NHD 20200615 for Virginia State or Territory Shapefile Model Version 2.2.1 USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 02 (published 20200628) USGS National Hydrography Dataset (NHD) Best Resolution for West Virginia 20160414 State or Territory FileGDB 10.1 - HUC Watersheds