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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 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, Administrative watershed units, Administrative watershed units, Albemarle County, Alleghany County, 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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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.


map background search result map search result map USGS Topo Map Vector Data (Vector) 336085 Sumdum C-4 SW, Alaska 20210916 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 336102 Sumdum D-5 SW, Alaska 20210916 for 7.5 x 7.5 minute FileGDB 10.1 USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 03 (published 20201030) USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 19 (published 20201118) USGS Topo Map Vector Data (Vector) 336069 Sumdum B-5 SW, Alaska 20210917 for 7.5 x 7.5 minute FileGDB 10.1 USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 4 - 0208 (published 20210815) USGS NED 1/3 arc-second Contours for Petersburg E, Alaska 20210929 1 X 1 degree FileGDB 10.1 USGS NED 1/3 arc-second Contours for Petersburg W, Alaska 20210929 1 X 1 degree FileGDB 10.1 USGS Topo Map Vector Data (Vector) 34873 Petersburg C-3 SW, Alaska 20210917 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 334157 Petersburg D-1 NE, Alaska 20210916 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 334161 Petersburg D-2 NE, Alaska 20210917 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 334164 Petersburg D-3 NW, Alaska 20210916 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 334126 Petersburg B-4 NE, Alaska 20210916 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 334125 Petersburg B-4 SW, Alaska 20210916 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 334141 Petersburg C-2 NE, Alaska 20210916 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 336063 Sumdum B-2 SW, Alaska 20210917 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 336052 Sumdum A-2 NE, Alaska 20210916 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 336064 Sumdum B-3 SE, Alaska 20210916 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 334144 Petersburg C-4 SW, Alaska 20210917 for 7.5 x 7.5 minute FileGDB 10.1 NHD 20200615 for Virginia State or Territory Shapefile Model Version 2.2.1 USGS Topo Map Vector Data (Vector) 336085 Sumdum C-4 SW, Alaska 20210916 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 334125 Petersburg B-4 SW, Alaska 20210916 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 336064 Sumdum B-3 SE, Alaska 20210916 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 334144 Petersburg C-4 SW, Alaska 20210917 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 336102 Sumdum D-5 SW, Alaska 20210916 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 336069 Sumdum B-5 SW, Alaska 20210917 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 34873 Petersburg C-3 SW, Alaska 20210917 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 334157 Petersburg D-1 NE, Alaska 20210916 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 334161 Petersburg D-2 NE, Alaska 20210917 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 334164 Petersburg D-3 NW, Alaska 20210916 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 334126 Petersburg B-4 NE, Alaska 20210916 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 334141 Petersburg C-2 NE, Alaska 20210916 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 336063 Sumdum B-2 SW, Alaska 20210917 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 336052 Sumdum A-2 NE, Alaska 20210916 for 7.5 x 7.5 minute Shapefile USGS NED 1/3 arc-second Contours for Petersburg E, Alaska 20210929 1 X 1 degree FileGDB 10.1 USGS NED 1/3 arc-second Contours for Petersburg W, Alaska 20210929 1 X 1 degree FileGDB 10.1 USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 4 - 0208 (published 20210815) NHD 20200615 for Virginia State or Territory Shapefile Model Version 2.2.1 USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 03 (published 20201030) USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 19 (published 20201118)