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This data release contains environmental and quality control results for chemical, biological, and physical sampling of water and bed sediment from Albemarle Sound and associated tributaries between 2012 and 2014 referenced in USGS OFR 2016-1171. Appendix 1 contains all quality control results to characterize the bias and variability of sampling, handling, and analysis of water, phytoplankton, and bed sediment samples. Appendix 2 contains all the chemical, biological, and physical results for water samples collected in July and August of 2012. Appendix 3 contains all the chemical, biological, and physical results for water samples collected from March 2013 to February 2014. Data are included for discrete samples...
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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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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: 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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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, Alamance County, Appomattox County, Area of Complex Channels, All tags...
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The U.S. Geological Survey, in cooperation with the North Carolina Turnpike Authority, conducted a study to establish baseline water-quality conditions and bed-sediment chemistry in Currituck Sound, North Carolina, prior to construction of the Mid-Currituck Bridge. This Data Release contains the associated data described in the Open-File Report, “Characterization of Water-Quality and Bed-Sediment Conditions in Currituck Sound, North Carolina, Prior to the Mid-Currituck Bridge Construction, 2011-18”. These datasets contain information on analytical constituents measured in samples, surface-water environmental and quality-assurance sample results, bed-sediment environmental and quality-assurance sample results, phytoplankton...
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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: Abbeville County, Administrative watershed units, Aiken County, Alamance County, Alexander County, All tags...


map background search result map search result map USGS National Hydrography Dataset (NHD) Best Resolution for North Carolina 20160413 State or Territory FileGDB 10.1 - HUC Watersheds Associated data for Water Quality and Sediment Quality in the Albemarle Sound, North Carolina, 2012–14 Associated data for Water Quality and Sediment Quality in the Albemarle Sound, North Carolina, 2012–14, Appendix 3 USGS Topo Map Vector Data (Vector) 10172 Corolla NC (published 20221018) Shapefile USGS Topo Map Vector Data (Vector) 11065 Currituck NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 24414 Lake Drummond SE VA (published 20221018) Shapefile USGS Topo Map Vector Data (Vector) 13952 Elizabeth City NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 27883 Martin Point NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 30991 Moyock NC (published 20221018) FileGDB USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 03 (published 20230306) FileGDB USGS NED 1/3 arc-second Contours for Currituck Sound W, North Carolina 1 x 1 degree (published 20221018) Shapefile USGS US Topo 7.5-minute map for Creeds, VA,NC 2019 Bed-Sediment Results for Currituck Sound, North Carolina, 2011-17 USGS National Hydrography Dataset Best Resolution (NHD) - Virginia (published 20230305) Shapefile US Topo 7.5-minute map for Shiloh, NC US Topo 7.5-minute map for Camden Point, NC US Topo 7.5-minute map for Knotts Island, NC,VA USGS National Hydrography Dataset Best Resolution (NHD) for Hydrological Unit (HU) 4 - 0301 (published 20230311) GeoPackage USGS Topo Map Vector Data (Vector) 11065 Currituck NC (published 20221018) GeoPackage USGS Topo Map Vector Data (Vector) 24414 Lake Drummond SE VA (published 20221018) GeoPackage USGS Topo Map Vector Data (Vector) 10172 Corolla NC (published 20221018) Shapefile USGS Topo Map Vector Data (Vector) 11065 Currituck NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 24414 Lake Drummond SE VA (published 20221018) Shapefile USGS Topo Map Vector Data (Vector) 13952 Elizabeth City NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 27883 Martin Point NC (published 20221018) FileGDB USGS Topo Map Vector Data (Vector) 30991 Moyock NC (published 20221018) FileGDB USGS US Topo 7.5-minute map for Creeds, VA,NC 2019 US Topo 7.5-minute map for Shiloh, NC US Topo 7.5-minute map for Camden Point, NC US Topo 7.5-minute map for Knotts Island, NC,VA USGS Topo Map Vector Data (Vector) 11065 Currituck NC (published 20221018) GeoPackage USGS Topo Map Vector Data (Vector) 24414 Lake Drummond SE VA (published 20221018) GeoPackage Bed-Sediment Results for Currituck Sound, North Carolina, 2011-17 USGS NED 1/3 arc-second Contours for Currituck Sound W, North Carolina 1 x 1 degree (published 20221018) Shapefile Associated data for Water Quality and Sediment Quality in the Albemarle Sound, North Carolina, 2012–14 Associated data for Water Quality and Sediment Quality in the Albemarle Sound, North Carolina, 2012–14, Appendix 3 USGS National Hydrography Dataset Best Resolution (NHD) for Hydrological Unit (HU) 4 - 0301 (published 20230311) GeoPackage USGS National Hydrography Dataset Best Resolution (NHD) - Virginia (published 20230305) Shapefile USGS National Hydrography Dataset (NHD) Best Resolution for North Carolina 20160413 State or Territory FileGDB 10.1 - HUC Watersheds USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 03 (published 20230306) FileGDB