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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, Administrative watershed units, Administrative watershed units, Albemarle County, Alleghany 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: 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, Administrative watershed units, Administrative watershed units, Albemarle County, Alleghany 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: Administrative watershed units, Administrative watershed units, Albemarle County, Amherst County, Appomattox 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, 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, Alleghany County, Area of Complex Channels, Area to be submerged, 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, Alleghany County, Amherst County, Area of Complex Channels, 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.


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 Combined Vector for Clifton Forge, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Combined Vector for Daleville, Virginia 20160719 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Snowden, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Combined Vector for Buchanan, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Combined Vector for Longdale Furnace, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Montvale, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Natural Bridge, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Roanoke, Virginia 20160720 7.5 x 7.5 minute Shapefile USGS Combined Vector for Eagle Rock, Virginia 20160715 7.5 x 7.5 minute Shapefile USGS Combined Vector for Stewartsville, Virginia 20160714 7.5 x 7.5 minute Shapefile USGS Combined Vector for Strom, Virginia 20160715 7.5 x 7.5 minute FileGDB 10.1 USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 03 (published 20190628) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 4 - 0208 (published 20190701) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 4 - 0208 (published 20190701) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 02080201 (published 20190709) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 02080203 (published 20190709) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 02080202 (published 20190709) NHD 20190623 for Virginia State or Territory FileGDB 10.1 Model Version 2.2.1 NHD 20190623 for Virginia State or Territory Shapefile Model Version 2.2.1 USGS Combined Vector for Clifton Forge, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Combined Vector for Daleville, Virginia 20160719 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Snowden, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Combined Vector for Buchanan, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Combined Vector for Longdale Furnace, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Montvale, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Natural Bridge, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Roanoke, Virginia 20160720 7.5 x 7.5 minute Shapefile USGS Combined Vector for Eagle Rock, Virginia 20160715 7.5 x 7.5 minute Shapefile USGS Combined Vector for Stewartsville, Virginia 20160714 7.5 x 7.5 minute Shapefile USGS Combined Vector for Strom, Virginia 20160715 7.5 x 7.5 minute FileGDB 10.1 USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 02080202 (published 20190709) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 02080203 (published 20190709) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 02080201 (published 20190709) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 4 - 0208 (published 20190701) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 4 - 0208 (published 20190701) NHD 20190623 for Virginia State or Territory FileGDB 10.1 Model Version 2.2.1 NHD 20190623 for Virginia State or Territory Shapefile Model Version 2.2.1 USGS National Hydrography Dataset (NHD) Best Resolution for West Virginia 20160414 State or Territory FileGDB 10.1 - HUC Watersheds USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 03 (published 20190628)