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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: Administrative watershed units, Administrative watershed units, Area of Complex Channels, Area to be submerged, Ashtabula County, All tags...
Observations and subtle shifts of vegetation communities in western Lake Erie have USGS researchers concerned about the potential for Grass Carp to alter these vegetation communities. Broad-scale surveys of vegetation using remote sensing and GIS mapping, coupled with on-the-ground samples in key locations will permit assessment of the effect Grass Carp may have already had on aquatic vegetation communities and establish baseline conditions for assessing future effects. Existing aerial imagery was used with object-based image analysis to detect and map aquatic vegetation in the western basin of Lake Erie.
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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, Area of Complex Channels, Area to be submerged, Ashtabula 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: Adams County, Administrative watershed units, Administrative watershed units, Allegany County, Allegany 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: Addison County, Administrative watershed units, Administrative watershed units, Albany County, Allegany 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, Appanoose County, Area of Complex Channels, Area to be submerged, 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: Ashtabula County, Chautauqua County, Cuyahoga County, Downloadable Data, Erie County, All tags...


map background search result map search result map USGS Topo Map Vector Data (Vector) 3431 Berkey, Ohio 20200225 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 17994 Grand Rapids, Ohio 20200225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 76333 Metzger Marsh OE E, Ohio 20200224 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 38674 Rossford, Ohio 20200225 for 7.5 x 7.5 minute FileGDB 10.1 Lake Erie, Western Basin Aquatic Vegetation USGS Topo Map Vector Data (Vector) 14587 Estral Beach, Michigan 20200708 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 26863 Lucas, Iowa 20190321 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 49740 Woodburn, Iowa 20190321 for 7.5 x 7.5 minute FileGDB 10.1 USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 04120200 (published 20190207) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 07100009 (published 20201010) NHD 20200622 for New York State or Territory Shapefile Model Version 2.2.1 NHD 20200616 for Pennsylvania State or Territory FileGDB 10.1 Model Version 2.2.1 USGS US Topo 7.5-minute map for Attica, IA 2018 USGS US Topo 7.5-minute map for Lucas, IA 2018 USGS US Topo 7.5-minute map for Medora, IA 2018 USGS US Topo 7.5-minute map for Russell, IA 2018 USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 04260000 (published 20201010) USGS US Topo 7.5-minute map for Genoa, OH 2019 USGS US Topo 7.5-minute map for Swanton, OH 2019 USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for 4-digit Hydrologic Unit - 0426i (published 20201019) USGS Topo Map Vector Data (Vector) 3431 Berkey, Ohio 20200225 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 17994 Grand Rapids, Ohio 20200225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 76333 Metzger Marsh OE E, Ohio 20200224 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 38674 Rossford, Ohio 20200225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 14587 Estral Beach, Michigan 20200708 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 26863 Lucas, Iowa 20190321 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 49740 Woodburn, Iowa 20190321 for 7.5 x 7.5 minute FileGDB 10.1 USGS US Topo 7.5-minute map for Attica, IA 2018 USGS US Topo 7.5-minute map for Lucas, IA 2018 USGS US Topo 7.5-minute map for Medora, IA 2018 USGS US Topo 7.5-minute map for Russell, IA 2018 USGS US Topo 7.5-minute map for Genoa, OH 2019 USGS US Topo 7.5-minute map for Swanton, OH 2019 Lake Erie, Western Basin Aquatic Vegetation USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 07100009 (published 20201010) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 04120200 (published 20190207) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 04260000 (published 20201010) USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for 4-digit Hydrologic Unit - 0426i (published 20201019) NHD 20200616 for Pennsylvania State or Territory FileGDB 10.1 Model Version 2.2.1 NHD 20200622 for New York State or Territory Shapefile Model Version 2.2.1