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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 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...
Types: Citation; Tags: Cumberland County, Huntingdon County, National Hydrography Dataset (NHD), Falls Church City, King George County, All tags...
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Layers of geospatial data include geographic names, hydrography, and other selected map features. The map layer was produced from the Medium-Resolution National Hydrography Dataset feature classes, through feature selection and cartographic generalization, based on reference to published small-scale ancillary data sets.
Types: Citation; Tags: Flow direction network, boundaries, Cumberland County, Delaware, Huntingdon 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...
Types: Citation; Tags: Flow direction network, Lexington City, boundaries, Cumberland County, Cumberland 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...
Types: Citation; Tags: Flow direction network, boundaries, Cumberland County, Delaware, Huntingdon County, All tags...
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Layers of geospatial data include geographic names, hydrography, and other selected map features. The map layer was produced from the Medium-Resolution National Hydrography Dataset feature classes, through feature selection and cartographic generalization, based on reference to published small-scale ancillary data sets.
Types: Citation; Tags: US-PA-Philadelphia, Flow direction network, boundaries, Cumberland County, Delaware, 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...
Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Flow direction network, Lexington City, boundaries, Cumberland County, Hanover County, 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 National Hydrography Dataset (NHD) Medium Resolution for Maryland 20140807 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Medium Resolution for Pennsylvania 20140804 State or Territory Shapefile USGS National Hydrography Dataset (NHD) Best Resolution 20170914 for Pennsylvania State or Territory FileGDB 10.1 Model Version 2.2.1 USGS National Hydrography Dataset (NHD) Best Resolution 20170914 for Virginia State or Territory FileGDB 10.1 Model Version 2.2.1 USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) Best Resolution for HU4-0207 (Subregion) Publication Date 20170426 HU-4 Subregion USGS Combined Vector for Bentonville, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Timberville, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Toms Brook, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 49652 Wolf Gap, West Virginia 20170224 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 49652 Wolf Gap, West Virginia 20170224 for 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Luray, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Luray, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Combined Vector for Mountain Falls, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Combined Vector for Tenth Legion, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Tenth Legion, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 47452 Wardensville, West Virginia 20170225 for 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 Woodstock, Virginia 20160714 7.5 x 7.5 minute Shapefile USGS Combined Vector for New Market, Virginia 20160714 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Bentonville, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Timberville, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Toms Brook, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 49652 Wolf Gap, West Virginia 20170224 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 49652 Wolf Gap, West Virginia 20170224 for 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Luray, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Luray, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Combined Vector for Mountain Falls, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Combined Vector for Tenth Legion, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Tenth Legion, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 47452 Wardensville, West Virginia 20170225 for 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 Woodstock, Virginia 20160714 7.5 x 7.5 minute Shapefile USGS Combined Vector for New Market, Virginia 20160714 7.5 x 7.5 minute FileGDB 10.1 USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) Best Resolution for HU4-0207 (Subregion) Publication Date 20170426 HU-4 Subregion USGS National Hydrography Dataset (NHD) Medium Resolution for Maryland 20140807 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Medium Resolution for Pennsylvania 20140804 State or Territory Shapefile USGS National Hydrography Dataset (NHD) Best Resolution 20170914 for Pennsylvania State or Territory FileGDB 10.1 Model Version 2.2.1 USGS National Hydrography Dataset (NHD) Best Resolution 20170914 for Virginia State or Territory FileGDB 10.1 Model Version 2.2.1 USGS National Hydrography Dataset (NHD) Best Resolution for West Virginia 20160414 State or Territory FileGDB 10.1 - HUC Watersheds