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Album caption: Middle Fork American River, Calif., view at mouth of Dardanelles Canyon, picture by T.P. Pendleton, assitant topographer, when making profile survey, 1912. Handwritten notes on album caption: Colfax quad, Calif., Placer County. Index card: Gold dredge at mouth of Dardanelles Canyon. Placer County, California. 1912.
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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...
Types: Citation; Tags: Benson County, Bottineau County, Burke County, Divide County, Downloadable Data, All tags...
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This assessment presents GIS data containing results of all freshwater assessment analyses conducted by The Nature Conservancy for Washington State. This data set includes values for biodiversity metrics (e.g. suitability, threat, number of species) across all HUC6 watersheds in Washington State, as well as identifies rivers, watersheds, and wetlands that provide the best opportunities for conservation of Washington's native freshwater species and ecological systems. Fore more information, visit waconservation.org .
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Level 2 of the Global Lakes and Wetlands Database (GLWD) comprises the shoreline polygons of permanent open water bodies (lakes, reservoirs, and rivers) with a surface area >= 0.1 square km, excluding the water bodies contained in GLWD-1.
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This data set portrays the linear federally-owned land features (i.e., national parkways, wild and scenic rivers, etc.) of the Lake Michigan basin. The data set was created by extracting linear federal land features from the 1:2,000,000-scale individual State DLG files produced by the U.S. Geological Survey. These files were then merged into a single coverage. This is a revised version of the April 2000 data set.
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Album caption: South Fork of American River, at Coloma, California, (where gold was first discovered). Picture by J.G. Staack, Topographer, spring of 1912, while making profile survey. Handwritten notes on album caption: Placerville quad, El Dorado County, Calif. Index card: Bar at Coloma where gold was first found. El Dorado County, Calfornia. 1912.
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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: Ada County, Adams County, Adams County, Administrative watershed units, Administrative watershed units, All tags...
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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: AL, Administrative watershed units, Administrative watershed units, Alabama, Alcorn County, All tags...
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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: AK, Administrative watershed units, Administrative watershed units, Alaska, Aleutians East Borough, All tags...
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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: Administrative watershed units, Administrative watershed units, Alcona County, Alger County, Allegan County, All tags...
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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: Adams County, Administrative watershed units, Administrative watershed units, Allegan County, Allen County, All tags...
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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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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: Administrative watershed units, Administrative watershed units, Alcona County, Alger County, Allegan County, All tags...
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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: AK, Adair County, Adair County, Adams County, Adams County, All tags...
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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: Abbeville County, Administrative watershed units, Administrative watershed units, Aiken County, Alexander County, All tags...
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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: AS, Administrative watershed units, Administrative watershed units, American Samoa, Area of Complex Channels, 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...
Types: Citation; Tags: Administrative watershed units, Administrative watershed units, Area of Complex Channels, Area to be submerged, Barnstable 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...
Types: Citation; Tags: Bergen County, Bronx County, CT, Connecticut, Downloadable Data, All tags...


map background search result map search result map Washington State Statewide Freshwater Assessment Lake Michigan basin, USA: parkways and scenic rivers Global Lakes and Wetlands Database - Level 2 (small lakes and reservoirs, rivers) USGS National Hydrography Dataset (NHD) Medium Resolution for Idaho 20140804 State or Territory Shapefile USGS National Hydrography Dataset (NHD) Medium Resolution for Alabama 20140829 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Medium Resolution for Alaska 20140804 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Medium Resolution for Michigan 20140804 State or Territory Shapefile USGS National Hydrography Dataset (NHD) Medium Resolution for Indiana 20140804 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Medium Resolution for Maryland 20140807 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Medium Resolution for Michigan 20140804 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Medium Resolution for Missouri 20140804 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Medium Resolution for South Carolina 20140804 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Medium Resolution for American Samoa 20140909 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Best Resolution for 20160831 State or Territory FileGDB 10.1 Model Version 2.2.1 USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for HU4-0203 (Subregion) Publication Date 20170608 HU-4 Subregion USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for HU4-0901 (Subregion) Publication Date 20170907 HU-4 Subregion Gold dredge at the mouth of Dardanelles Canyon, Placer County, California. 1912. Coloma, South Fork of American River, El Dorado County, California. 1912. USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for HU4-0203 (Subregion) Publication Date 20170608 HU-4 Subregion USGS National Hydrography Dataset (NHD) Best Resolution for 20160831 State or Territory FileGDB 10.1 Model Version 2.2.1 Lake Michigan basin, USA: parkways and scenic rivers USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for HU4-0901 (Subregion) Publication Date 20170907 HU-4 Subregion USGS National Hydrography Dataset (NHD) Medium Resolution for Maryland 20140807 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Medium Resolution for South Carolina 20140804 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Medium Resolution for Alabama 20140829 State or Territory FileGDB 10.1 Washington State Statewide Freshwater Assessment USGS National Hydrography Dataset (NHD) Medium Resolution for Indiana 20140804 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Medium Resolution for Missouri 20140804 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Medium Resolution for Idaho 20140804 State or Territory Shapefile USGS National Hydrography Dataset (NHD) Medium Resolution for Michigan 20140804 State or Territory Shapefile USGS National Hydrography Dataset (NHD) Medium Resolution for Michigan 20140804 State or Territory FileGDB 10.1 USGS National Hydrography Dataset (NHD) Medium Resolution for Alaska 20140804 State or Territory FileGDB 10.1 Global Lakes and Wetlands Database - Level 2 (small lakes and reservoirs, rivers)