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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: AL, Administrative watershed units, Alabama, Alcorn County, Area of Complex Channels, 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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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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Remote sensing technologies, such as high-resolution sonar, can be used to collect more detailed information about the benthic and water column characteristics of macro habitats in the Illinois River. Multibeam echosounders (MBES) collect multibeam and sidescan simultaneously, providing high-resolution images of the riverbed. Sidescan images, in raster format, show the recorded intensity of acoustic signal returns from the riverbed. The acoustic data were collected from the main and side channels (where accessible) of the Dresden reach June 4 – 28, 2018.
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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.


map background search result map search result map USGS National Hydrography Dataset (NHD) Best Resolution for Alabama 20160411 State or Territory FileGDB 10.1 - Flowlines USGS Topo Map Vector Data (Vector) 1256 Aplington, Iowa 20220429 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 13195 Dwight, Illinois 20210628 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 20717 Holland, Iowa 20220429 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 22206 Ivester, Iowa 20220429 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 23698 Kinsman, Illinois 20210629 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 28185 Mazon, Illinois 20210629 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 43006 Stavanger, Illinois 20210629 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 37576 Reinbeck, Iowa 20220429 for 7.5 x 7.5 minute Shapefile USGS US Topo 7.5-minute map for Chula, MO 2017 USGS US Topo 7.5-minute map for Coal City, IL 2018 USGS US Topo 7.5-minute map for Hillsboro, TN 2019 USGS US Topo 7.5-minute map for Irving College, TN 2019 USGS US Topo 7.5-minute map for Monteagle, TN 2019 Illinois River, Dresden, Sidescan Image Mosaic June 2018 USGS US Topo 7.5-minute map for Wilmington, IL 2018 USGS US Topo 7.5-minute map for Coal City, IL 2021 USGS US Topo 7.5-minute map for Farmersville, MO 2021 US Topo 7.5-minute map for Curtistown, TN US Topo 7.5-minute map for White City, TN USGS Topo Map Vector Data (Vector) 1256 Aplington, Iowa 20220429 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 13195 Dwight, Illinois 20210628 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 20717 Holland, Iowa 20220429 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 22206 Ivester, Iowa 20220429 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 23698 Kinsman, Illinois 20210629 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 28185 Mazon, Illinois 20210629 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 43006 Stavanger, Illinois 20210629 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 37576 Reinbeck, Iowa 20220429 for 7.5 x 7.5 minute Shapefile USGS US Topo 7.5-minute map for Chula, MO 2017 USGS US Topo 7.5-minute map for Coal City, IL 2018 USGS US Topo 7.5-minute map for Hillsboro, TN 2019 USGS US Topo 7.5-minute map for Irving College, TN 2019 USGS US Topo 7.5-minute map for Monteagle, TN 2019 USGS US Topo 7.5-minute map for Wilmington, IL 2018 USGS US Topo 7.5-minute map for Coal City, IL 2021 USGS US Topo 7.5-minute map for Farmersville, MO 2021 US Topo 7.5-minute map for Curtistown, TN US Topo 7.5-minute map for White City, TN Illinois River, Dresden, Sidescan Image Mosaic June 2018 USGS National Hydrography Dataset (NHD) Best Resolution for Alabama 20160411 State or Territory FileGDB 10.1 - Flowlines