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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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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: Accomack County, Adams County, Administrative watershed units, Administrative watershed units, Alamance County, All tags...
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Background In recent years, more and more people have become concerned about Long Island's supply of freshwater. Currently, there is no comprehensive, island-wide resource that summarizes recent U.S. Geological Survey (USGS) research related to the Island's aquifer system. A webpage will be developed by the USGS that will compile published data from the hydrologic-surveillance program, in place since the mid-1970’s, and various USGS sources, and supplement this information with more recent seasonal and annual hydrologic technical assistance will be provided to the Suffolk County Water Authority (SCWA) to help them produce an easy to understand annual report that will provide a snapshot of the state of Long Island's...
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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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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.


map background search result map search result map State of the Aquifer, Long Island, New York USGS Topo Map Vector Data (Vector) 76296 Clinton OE S, Connecticut 20180809 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 2718 Bay Shore West, New York 20191119 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 76284 Bay Shore East OE S, New York 20191119 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 75940 Bay Shore West OE S, New York 20191119 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 70396 Holland, Virginia 20190916 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 31309 Napeague Beach, New York 20191119 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 76347 Plum Island OE E, New York 20191118 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 39167 Sag Harbor, New York 20191119 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 76174 Sag Harbor OE S, New York 20191118 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 48192 West Gilgo Beach, New York 20191118 for 7.5 x 7.5 minute Shapefile USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 03 (published 20201030) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 4 - 0208 (published 20201101) NHD 20200615 for Virginia State or Territory Shapefile Model Version 2.2.1 USGS US Topo 7.5-minute map for Marblehead South, MA 2018 USGS US Topo 7.5-minute map for Guilford OE S, CT,NY 2018 USGS US Topo 7.5-minute map for Niantic, CT,NY 2018 USGS US Topo 7.5-minute map for Lloyd Harbor, NY,CT 2019 USGS US Topo 7.5-minute map for Wading River, NY 2019 USGS US Topo 7.5-minute map for West Gilgo Beach, NY 2019 USGS Topo Map Vector Data (Vector) 76296 Clinton OE S, Connecticut 20180809 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 2718 Bay Shore West, New York 20191119 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 76284 Bay Shore East OE S, New York 20191119 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 75940 Bay Shore West OE S, New York 20191119 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 70396 Holland, Virginia 20190916 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 31309 Napeague Beach, New York 20191119 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 76347 Plum Island OE E, New York 20191118 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 39167 Sag Harbor, New York 20191119 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 76174 Sag Harbor OE S, New York 20191118 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 48192 West Gilgo Beach, New York 20191118 for 7.5 x 7.5 minute Shapefile USGS US Topo 7.5-minute map for Marblehead South, MA 2018 USGS US Topo 7.5-minute map for Guilford OE S, CT,NY 2018 USGS US Topo 7.5-minute map for Niantic, CT,NY 2018 USGS US Topo 7.5-minute map for Lloyd Harbor, NY,CT 2019 USGS US Topo 7.5-minute map for Wading River, NY 2019 USGS US Topo 7.5-minute map for West Gilgo Beach, NY 2019 State of the Aquifer, Long Island, New York USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 4 - 0208 (published 20201101) 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)