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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: Adams County, Administrative watershed units, Administrative watershed units, Allegany County, Allegheny County, 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, Anne Arundel 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, Anne Arundel 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: Accomack County, Adams County, Administrative watershed units, Administrative watershed units, Alexandria 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, Anne Arundel County, Area of Complex Channels, Area to be submerged, All tags...


map background search result map search result map USGS Topo Map Vector Data (Vector) 1074 Annapolis, Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 5063 Bowie, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 76409 Chesapeake Bay 1 (All Water), Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 76409 Chesapeake Bay 1 (All Water), Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 75987 Deale OE E, Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 11074 Curtis Bay, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 75987 Deale OE E, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 23360 Kent Island, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 32315 North Beach, Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 38725 Round Bay, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 40053 Savage, Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 40053 Savage, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 42284 South River, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 43967 Swan Point, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS National Hydrography Dataset Best Resolution (NHD) for Hydrological Unit (HU) 8 - 02060004 (published 20220605) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrological Unit (HU) 8 - 02060006 (published 20220605) USGS US Topo 7.5-minute map for South River, MD 2019 USGS National Hydrography Dataset Best Resolution (NHD) - Pennsylvania (published 20220809) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrological Unit (HU) 4 - 0206 (published 20220603) USGS National Hydrography Dataset Best Resolution (NHD) - Maryland (published 20220602) USGS Topo Map Vector Data (Vector) 1074 Annapolis, Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 5063 Bowie, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 76409 Chesapeake Bay 1 (All Water), Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 76409 Chesapeake Bay 1 (All Water), Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 75987 Deale OE E, Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 11074 Curtis Bay, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 75987 Deale OE E, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 23360 Kent Island, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 32315 North Beach, Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 38725 Round Bay, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 40053 Savage, Maryland 20201007 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 40053 Savage, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 42284 South River, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 43967 Swan Point, Maryland 20201007 for 7.5 x 7.5 minute Shapefile USGS US Topo 7.5-minute map for South River, MD 2019 USGS National Hydrography Dataset Best Resolution (NHD) for Hydrological Unit (HU) 8 - 02060004 (published 20220605) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrological Unit (HU) 8 - 02060006 (published 20220605) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrological Unit (HU) 4 - 0206 (published 20220603) USGS National Hydrography Dataset Best Resolution (NHD) - Maryland (published 20220602) USGS National Hydrography Dataset Best Resolution (NHD) - Pennsylvania (published 20220809)