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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...
Tags: Administrative watershed units, Administrative watershed units, Area of Complex Channels, Area to be submerged, Basin, All tags...
thumbnail
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...


map background search result map search result map USGS Combined Vector for Allenwood, Pennsylvania 20160729 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Hughesville, Pennsylvania 20160730 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Lively, Virginia 20160719 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Lively, Virginia 20160719 7.5 x 7.5 minute Shapefile USGS Combined Vector for Muncy, Pennsylvania 20160730 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 39275 Saint George Island, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Dalmatia, Pennsylvania 20160801 7.5 x 7.5 minute Shapefile USGS Combined Vector for Elizabethville, Pennsylvania 20160731 7.5 x 7.5 minute Shapefile USGS Combined Vector for Haynesville, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Haynesville, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Combined Vector for Kinsale, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Kinsale, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Combined Vector for Montoursville South, Pennsylvania 20160801 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Montoursville South, Pennsylvania 20160801 7.5 x 7.5 minute Shapefile USGS Combined Vector for Shamokin, Pennsylvania 20160801 7.5 x 7.5 minute Shapefile USGS Combined Vector for Trevorton, Pennsylvania 20160801 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Valley View, Pennsylvania 20160802 7.5 x 7.5 minute FileGDB 10.1 USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 02050206 (published 20190706) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 4 - 0208 (published 20190701) NHD 20190623 for Virginia State or Territory Shapefile Model Version 2.2.1 USGS Combined Vector for Allenwood, Pennsylvania 20160729 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Hughesville, Pennsylvania 20160730 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Lively, Virginia 20160719 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Lively, Virginia 20160719 7.5 x 7.5 minute Shapefile USGS Combined Vector for Muncy, Pennsylvania 20160730 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 39275 Saint George Island, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Dalmatia, Pennsylvania 20160801 7.5 x 7.5 minute Shapefile USGS Combined Vector for Elizabethville, Pennsylvania 20160731 7.5 x 7.5 minute Shapefile USGS Combined Vector for Haynesville, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Haynesville, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Combined Vector for Kinsale, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Kinsale, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Combined Vector for Montoursville South, Pennsylvania 20160801 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Montoursville South, Pennsylvania 20160801 7.5 x 7.5 minute Shapefile USGS Combined Vector for Shamokin, Pennsylvania 20160801 7.5 x 7.5 minute Shapefile USGS Combined Vector for Trevorton, Pennsylvania 20160801 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Valley View, Pennsylvania 20160802 7.5 x 7.5 minute FileGDB 10.1 USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 02050206 (published 20190706) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 4 - 0208 (published 20190701) NHD 20190623 for Virginia State or Territory Shapefile Model Version 2.2.1