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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...
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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...
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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: Downloadable Data, FileGDB, FileGDB 10.1, HU-4 Subregion, HU-4 Subregion, 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: Administrative watershed units, Administrative watershed units, Area of Complex Channels, Area to be submerged, Basin, 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.
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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...


map background search result map search result map USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 4 - 2102 (published 20201201) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 21020001 (published 20201205) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 21020002 (published 20201207) USGS NED 1/3 arc-second Contours for Puerto Rico E, Puerto Rico 20181106 1 X 1 degree FileGDB 10.1 USGS 1:24000-scale Quadrangle for Central St. Thomas, VI 1955 USGS 1:24000-scale Quadrangle for Central St. Thomas, VI 1955 USGS 1:24000-scale Quadrangle for Christiansted, VI 1958 USGS 1:24000-scale Quadrangle for Christiansted, VI 1958 USGS 1:24000-scale Quadrangle for East Point, VI 1958 USGS 1:24000-scale Quadrangle for East Point, VI 1958 USGS 1:24000-scale Quadrangle for Eastern St. John, VI 1958 USGS 1:24000-scale Quadrangle for Eastern St. John, VI 1958 USGS 1:24000-scale Quadrangle for Eastern St. John, VI 1958 USGS 1:24000-scale Quadrangle for Eastern St. Thomas, VI 1954 USGS 1:24000-scale Quadrangle for Western St. Thomas, VI 1955 USGS National Boundary Dataset (NBD) in United States Virgin Islands 20201211 State or Territory Shapefile NHD 20200615 for United States Virgin Islands State or Territory FileGDB 10.1 Model Version 2.2.1 NHD 20200615 for United States Virgin Islands State or Territory Shapefile Model Version 2.2.1 USGS National Structures Dataset (NSD) for United States Virgin Islands 20201210 State or Territory FileGDB 10.1 USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for 4-digit Hydrologic Unit - 2102 (published 20201002) USGS 1:24000-scale Quadrangle for Central St. Thomas, VI 1955 USGS 1:24000-scale Quadrangle for Central St. Thomas, VI 1955 USGS 1:24000-scale Quadrangle for Western St. Thomas, VI 1955 USGS 1:24000-scale Quadrangle for Eastern St. John, VI 1958 USGS 1:24000-scale Quadrangle for Eastern St. John, VI 1958 USGS 1:24000-scale Quadrangle for Eastern St. John, VI 1958 USGS 1:24000-scale Quadrangle for Eastern St. Thomas, VI 1954 USGS 1:24000-scale Quadrangle for Christiansted, VI 1958 USGS 1:24000-scale Quadrangle for Christiansted, VI 1958 USGS 1:24000-scale Quadrangle for East Point, VI 1958 USGS 1:24000-scale Quadrangle for East Point, VI 1958 USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 21020002 (published 20201207) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 21020001 (published 20201205) USGS National Boundary Dataset (NBD) in United States Virgin Islands 20201211 State or Territory Shapefile USGS National Structures Dataset (NSD) for United States Virgin Islands 20201210 State or Territory FileGDB 10.1 USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 4 - 2102 (published 20201201) NHD 20200615 for United States Virgin Islands State or Territory FileGDB 10.1 Model Version 2.2.1 NHD 20200615 for United States Virgin Islands State or Territory Shapefile Model Version 2.2.1 USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for 4-digit Hydrologic Unit - 2102 (published 20201002) USGS NED 1/3 arc-second Contours for Puerto Rico E, Puerto Rico 20181106 1 X 1 degree FileGDB 10.1