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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: Anne Arundel County, Baltimore County, Baltimore County, Calvert County, Caroline County, All tags...
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Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.
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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: Adams County, Administrative watershed units, Administrative watershed units, Allegany County, Allegany County, All tags...


map background search result map search result map USGS Topo Map Vector Data (Vector) 5912 Buckeystown, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 7682 Catoctin Furnace, Maryland 20170222 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 7210 Capon Springs, West Virginia 20170224 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 11269 Damascus, Maryland 20170222 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 70192 Glengary, West Virginia 20170225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 21976 Inwood, West Virginia 20170224 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 35975 Poolesville, Maryland 20170226 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 35795 Point of Rocks, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 35975 Poolesville, Maryland 20170226 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 37874 Ridge, West Virginia 20170225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 44273 Taneytown, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 47277 Walkersville, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Winchester, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Combined Vector for Blue Ridge Summit, Pennsylvania 20160801 7.5 x 7.5 minute Shapefile USGS Combined Vector for Hayfield, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 47452 Wardensville, West Virginia 20170225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Stephens City, Virginia 20160715 7.5 x 7.5 minute Shapefile USGS National Hydrography Dataset (NHD) Best Resolution 20190215 for Pennsylvania State or Territory FileGDB 10.1 Model Version 2.2.1 USGS National Hydrography Dataset (NHD) Best Resolution 20190215 for Virginia State or Territory Shapefile Model Version 2.2.1 USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for 4-digit Hydrologic Unit - 0206 (published 20180813) USGS Topo Map Vector Data (Vector) 5912 Buckeystown, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 7682 Catoctin Furnace, Maryland 20170222 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 7210 Capon Springs, West Virginia 20170224 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 11269 Damascus, Maryland 20170222 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 70192 Glengary, West Virginia 20170225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 21976 Inwood, West Virginia 20170224 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 35975 Poolesville, Maryland 20170226 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 35795 Point of Rocks, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 35975 Poolesville, Maryland 20170226 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 37874 Ridge, West Virginia 20170225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 44273 Taneytown, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 47277 Walkersville, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Winchester, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Combined Vector for Blue Ridge Summit, Pennsylvania 20160801 7.5 x 7.5 minute Shapefile USGS Combined Vector for Hayfield, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 47452 Wardensville, West Virginia 20170225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Stephens City, Virginia 20160715 7.5 x 7.5 minute Shapefile USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for 4-digit Hydrologic Unit - 0206 (published 20180813) USGS National Hydrography Dataset (NHD) Best Resolution 20190215 for Pennsylvania State or Territory FileGDB 10.1 Model Version 2.2.1 USGS National Hydrography Dataset (NHD) Best Resolution 20190215 for Virginia State or Territory Shapefile Model Version 2.2.1