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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 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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Note: The 2022 data release "Geospatial Characterization of Salt Marshes in Chesapeake Bay" incorporates the Blackwater region salt marsh dataset. (https://doi.org/10.5066/P997EJYB) This data release contains coastal wetland synthesis products for the geographic region of Blackwater, Chesapeake Bay, Maryland. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, and others, are calculated for smaller units delineated from a digital elevation model, providing the spatial variability of physical factors that influence wetland health. The U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands with the intent...
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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.


map background search result map search result map USGS Topo Map Vector Data (Vector) 4274 Blackwater River, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 76405 Chesapeake Bay 2 (All Water), Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 8721 Church Creek, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 13406 East New Market, Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 17625 Golden Hill, Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 23125 Kedges Straits, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 33775 Oxford, Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 35790 Point No Point, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 40815 Sharptown, Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 45121 Tilghman, Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 03 (published 20230306) FileGDB USGS Topo Map Vector Data (Vector) 24236 Ladson, South Carolina 20200828 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 33517 Osborn, South Carolina 20200828 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 39272 Saint George, South Carolina 20200828 for 7.5 x 7.5 minute Shapefile USGS US Topo 7.5-minute map for Richland Point, MD 2019 USGS US Topo 7.5-minute map for Pringletown, SC 2020 USGS US Topo 7.5-minute map for Sandridge, SC 2020 USGS US Topo 7.5-minute map for Ladson, SC 2020 USGS National Hydrography Dataset Best Resolution (NHD) - Virginia (published 20230305) Shapefile USGS Topo Map Vector Data (Vector) 4274 Blackwater River, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 76405 Chesapeake Bay 2 (All Water), Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 8721 Church Creek, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 13406 East New Market, Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 17625 Golden Hill, Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 23125 Kedges Straits, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 33775 Oxford, Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 35790 Point No Point, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 40815 Sharptown, Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 45121 Tilghman, Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 24236 Ladson, South Carolina 20200828 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 33517 Osborn, South Carolina 20200828 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 39272 Saint George, South Carolina 20200828 for 7.5 x 7.5 minute Shapefile USGS US Topo 7.5-minute map for Richland Point, MD 2019 USGS US Topo 7.5-minute map for Pringletown, SC 2020 USGS US Topo 7.5-minute map for Sandridge, SC 2020 USGS US Topo 7.5-minute map for Ladson, SC 2020 USGS National Hydrography Dataset Best Resolution (NHD) - Virginia (published 20230305) Shapefile USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 03 (published 20230306) FileGDB