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Layers of geospatial data include geographic names, hydrography, and other selected map features. The map layer was produced from the Medium-Resolution National Hydrography Dataset feature classes, through feature selection and cartographic generalization, based on reference to published small-scale ancillary data sets.
Types: Citation; Tags: Accomack County, Adams County, Administrative watershed units, Administrative watershed units, Alexandria City, 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...


map background search result map search result map USGS National Hydrography Dataset (NHD) Medium Resolution for Maryland 20140807 State or Territory FileGDB 10.1 USGS Combined Vector for Bakersville, Pennsylvania 20160729 7.5 x 7.5 minute Shapefile USGS Combined Vector for Greensburg, Pennsylvania 20160817 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Johnstown, Pennsylvania 20160729 7.5 x 7.5 minute Shapefile USGS Combined Vector for Rollins Fork, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Dawson, Pennsylvania 20160801 7.5 x 7.5 minute Shapefile USGS Combined Vector for Haynesville, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Kinsale, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Kinsale, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Combined Vector for Latrobe, Pennsylvania 20160730 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Leechburg, Pennsylvania 20160730 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Ligonier, Pennsylvania 20160730 7.5 x 7.5 minute Shapefile USGS Combined Vector for Mammoth, Pennsylvania 20160801 7.5 x 7.5 minute Shapefile USGS Combined Vector for McKeesport, Pennsylvania 20160817 7.5 x 7.5 minute Shapefile USGS Combined Vector for New Florence, Pennsylvania 20160801 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Murrysville, Pennsylvania 20160801 7.5 x 7.5 minute Shapefile USGS Combined Vector for Stratford Hall, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Stahlstown, Pennsylvania 20160802 7.5 x 7.5 minute Shapefile USGS Combined Vector for Vandergrift, Pennsylvania 20160731 7.5 x 7.5 minute FileGDB 10.1 USGS National Hydrography Dataset (NHD) Best Resolution 20180815 for Virginia State or Territory Shapefile Model Version 2.2.1 USGS Combined Vector for Bakersville, Pennsylvania 20160729 7.5 x 7.5 minute Shapefile USGS Combined Vector for Greensburg, Pennsylvania 20160817 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Johnstown, Pennsylvania 20160729 7.5 x 7.5 minute Shapefile USGS Combined Vector for Rollins Fork, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Dawson, Pennsylvania 20160801 7.5 x 7.5 minute Shapefile USGS Combined Vector for Haynesville, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Kinsale, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Kinsale, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Combined Vector for Latrobe, Pennsylvania 20160730 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Leechburg, Pennsylvania 20160730 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Ligonier, Pennsylvania 20160730 7.5 x 7.5 minute Shapefile USGS Combined Vector for Mammoth, Pennsylvania 20160801 7.5 x 7.5 minute Shapefile USGS Combined Vector for McKeesport, Pennsylvania 20160817 7.5 x 7.5 minute Shapefile USGS Combined Vector for New Florence, Pennsylvania 20160801 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Murrysville, Pennsylvania 20160801 7.5 x 7.5 minute Shapefile USGS Combined Vector for Stratford Hall, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Stahlstown, Pennsylvania 20160802 7.5 x 7.5 minute Shapefile USGS Combined Vector for Vandergrift, Pennsylvania 20160731 7.5 x 7.5 minute FileGDB 10.1 USGS National Hydrography Dataset (NHD) Medium Resolution for Maryland 20140807 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Best Resolution 20180815 for Virginia State or Territory Shapefile Model Version 2.2.1