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The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated set of geospatial data layers, including the best available National Hydrography Dataset (NHD), the 10-meter 3D Elevation Program Digital Elevation Model (3DEP DEM), and the National Watershed Boundary Dataset (WBD). The NHDPlus HR combines the NHD, 3DEP DEMs, and WBD to create a stream network with linear referencing, feature naming, "value added attributes" (VAAs), elevation-derived catchments, and other features for hydrologic data analysis. The stream network with linear referencing is a system of data relationships applied to hydrographic systems so that one stream reach "flows" into another and "events" can be tied to and traced...
Tags: Albany County, Bennington County, Berkshire County, Columbia County, Delaware County, All tags...
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The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated set of geospatial data layers, including the best available National Hydrography Dataset (NHD), the 10-meter 3D Elevation Program Digital Elevation Model (3DEP DEM), and the National Watershed Boundary Dataset (WBD). The NHDPlus HR combines the NHD, 3DEP DEMs, and WBD to create a stream network with linear referencing, feature naming, "value added attributes" (VAAs), elevation-derived catchments, and other features for hydrologic data analysis. The stream network with linear referencing is a system of data relationships applied to hydrographic systems so that one stream reach "flows" into another and "events" can be tied to and traced...
Tags: Anne Arundel County, Baltimore County, Baltimore County, Calvert County, Caroline County, All tags...
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Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.
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Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.
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Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features.
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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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The U.S. Geological Survey (USGS) in cooperation with the Harris‐Galveston Subsidence District, City of Houston, Fort Bend Subsidence District, and Lone Star Groundwater Conservation District has produced this dataset of groundwater‐level altitudes and groundwater‐level altitude changes in the Chicot, Evangeline, and Jasper aquifers in the Houston‐Galveston region, Texas. This dataset shows current‐year (2018) groundwater‐level altitudes for each aquifer, 5‐year (2013‐18) groundwater‐level changes for each aquifer, long‐term (1990‐2018 and 1977‐2018) groundwater‐level changes for the Chicot and Evangeline aquifers, and long‐term (2000‐2018) groundwater‐level change for the Jasper aquifer. The groundwater‐level measurements...
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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 Combined Vector for Allensville, Kentucky 20160527 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 5912 Buckeystown, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Candor, North Carolina 20160706 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 11502 Dayton North, Ohio 20170228 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 70118 Franklin, Ohio 20170310 for 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Telford, Pennsylvania 20160729 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 47851 Waynesville, Ohio 20170226 for 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Wingate, Indiana 20160617 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Cowl Spur, Texas 20160527 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Elliston, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Ironto, Virginia 20160720 7.5 x 7.5 minute Shapefile USGS Combined Vector for Levee, Kentucky 20160527 7.5 x 7.5 minute Shapefile USGS Combined Vector for Rose Hill, Texas 20160526 7.5 x 7.5 minute Shapefile Groundwater-Level Altitudes and Long-term Groundwater-Level Changes in the Chicot, Evangeline, and Jasper Aquifers, Houston-Galveston Region, Texas, 2018 USGS US Topo 7.5-minute map for Montgomery South, AL 2018 USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for 4-digit Hydrologic Unit - 0202 (published 20180813) USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for 4-digit Hydrologic Unit - 0206 (published 20180813) USGS US Topo 7.5-minute map for Carson, IA 2018 USGS US Topo 7.5-minute map for Morton Mills, IA 2018 USGS Combined Vector for Allensville, Kentucky 20160527 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 5912 Buckeystown, Maryland 20170223 for 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Candor, North Carolina 20160706 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 11502 Dayton North, Ohio 20170228 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 70118 Franklin, Ohio 20170310 for 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Telford, Pennsylvania 20160729 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 47851 Waynesville, Ohio 20170226 for 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Wingate, Indiana 20160617 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Cowl Spur, Texas 20160527 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Elliston, Virginia 20160713 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Ironto, Virginia 20160720 7.5 x 7.5 minute Shapefile USGS Combined Vector for Levee, Kentucky 20160527 7.5 x 7.5 minute Shapefile USGS Combined Vector for Rose Hill, Texas 20160526 7.5 x 7.5 minute Shapefile USGS US Topo 7.5-minute map for Montgomery South, AL 2018 USGS US Topo 7.5-minute map for Carson, IA 2018 USGS US Topo 7.5-minute map for Morton Mills, IA 2018 Groundwater-Level Altitudes and Long-term Groundwater-Level Changes in the Chicot, Evangeline, and Jasper Aquifers, Houston-Galveston Region, Texas, 2018 USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for 4-digit Hydrologic Unit - 0206 (published 20180813) USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for 4-digit Hydrologic Unit - 0202 (published 20180813) USGS National Hydrography Dataset (NHD) Best Resolution for Alabama 20160411 State or Territory FileGDB 10.1 - Flowlines