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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: Administrative watershed units, Administrative watershed units, Area of Complex Channels, Area to be submerged, Barnstable 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...
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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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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
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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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Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
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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, Albany 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, Area of Complex Channels, Area to be submerged, Barnstable 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...
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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: Berkshire County, CT, Columbia County, Connecticut, Downloadable Data, All tags...


map background search result map search result map USGS National Hydrography Dataset (NHD) Best Resolution for 20160831 State or Territory FileGDB 10.1 Model Version 2.2.1 USGS Topo Map Vector Data (Vector) 9680 Columbia, Connecticut 20180809 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 9492 Colchester, Connecticut 20180809 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 70798 Manchester, Connecticut 20180809 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 70819 Marlborough, Connecticut 20180809 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 49201 Willimantic, Connecticut 20180809 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 48411 Westford, Connecticut 20180809 for 7.5 x 7.5 minute Shapefile USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 01080205 (published 20190706) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 01100001 (published 20190711) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 01100001 (published 20190711) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 01100002 (published 20190707) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 01100003 (published 20190711) NHD 20190622 for Rhode Island State or Territory FileGDB 10.1 Model Version 2.2.1 USGS US Topo 7.5-minute map for Columbia, CT 2018 USGS US Topo 7.5-minute map for Moodus, CT 2018 USGS US Topo 7.5-minute map for Westford, CT 2018 USGS US Topo 7.5-minute map for Willimantic, CT 2018 USGS US Topo 7.5-minute map for Ellington, CT 2018 NHD 20190622 for Massachusetts State or Territory Shapefile Model Version 2.2.1 USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for 4-digit Hydrologic Unit - 0110 (published 20180813) USGS Topo Map Vector Data (Vector) 9680 Columbia, Connecticut 20180809 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 9492 Colchester, Connecticut 20180809 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 70798 Manchester, Connecticut 20180809 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 70819 Marlborough, Connecticut 20180809 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 49201 Willimantic, Connecticut 20180809 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 48411 Westford, Connecticut 20180809 for 7.5 x 7.5 minute Shapefile USGS US Topo 7.5-minute map for Columbia, CT 2018 USGS US Topo 7.5-minute map for Moodus, CT 2018 USGS US Topo 7.5-minute map for Westford, CT 2018 USGS US Topo 7.5-minute map for Willimantic, CT 2018 USGS US Topo 7.5-minute map for Ellington, CT 2018 USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 01100003 (published 20190711) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 01100002 (published 20190707) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 01100001 (published 20190711) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 01100001 (published 20190711) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 01080205 (published 20190706) USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for 4-digit Hydrologic Unit - 0110 (published 20180813) NHD 20190622 for Rhode Island State or Territory FileGDB 10.1 Model Version 2.2.1 USGS National Hydrography Dataset (NHD) Best Resolution for 20160831 State or Territory FileGDB 10.1 Model Version 2.2.1 NHD 20190622 for Massachusetts State or Territory Shapefile Model Version 2.2.1