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The US Geological Survey Chesapeake Bay Watershed Land Cover Data Series, 2011 edition, (CBLCD-e11) consists of Level I Land Cover data for the years 1984, 1992, 2001, 2006 and 2011. It consists of a series of five 8-bit unsigned integer raster data files of 30 meter spatial resolution in Albers Conic Equal Area projection, NAD83 datum. The 1984 – 2006 data layers were created by aggregating most Level II Anderson classes of the USGS CBLCD Land Cover Data Series released in 2010 (Irani and Claggett, 2010).
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This map layer portrays the linear federally owned or administered land features (i.e., national parkways, wild and scenic rivers, etc.) of the United States and Puerto Rico. Some features may be administered in conjunction with local governments. The map layer was created by extracting and combining linear federal land features from the 1:1,000,000-scale Roads and Streams files that are part of The National Map. There are no Parkways or Scenic Rivers in Hawaii or in the U.S. Virgin Islands.
Types: Citation; Tags: ACOE, Alabama, Alaska, Arizona, Arkansas, All tags...
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The Satellite View with Shaded Relief of the Conterminous United States map layer is a 100-meter resolution simulated natural-color image of the United States, with relief shading added to accentuate terrain features. Vegetation is generally green, with forests in darker green and grasslands or shrublands in lighter green. Areas of high reflectance, including urban areas, rock, and dry bare soil, are shown in shades of tan and pink. Very bright areas, such as snow and ice, are light blue. The image was produced by combining a mosaic of Landsat Thematic Mapper (TM) imagery from the Landsat 4 and Landsat 5 satellites with shaded relief generated from 100-meter elevation data extracted from the National Elevation Dataset...
Types: Citation; Tags: Alabama, Arizona, Arkansas, California, Colorado, All tags...
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This map layer includes Global Map data showing waterbodies and wetlands of the United States, Puerto Rico, and the U.S. Virgin Islands. The data are a modified version of the National Atlas of the United States 1:1,000,000-Scale Waterbodies and Wetlands of the United States; that data set was created primarily from the Medium-Resolution and High-Resolution National Hydrography Dataset NHDWaterbody feature classes, through feature selection and cartographic generalization based on reference to published small-scale ancillary data sets.
Types: Citation; Tags: Alabama, Alaska, Arizona, Arkansas, California, 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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This map layer includes Global Map data showing cities and towns in the United States, Puerto Rico, and the U.S. Virgin Islands. The data are a modified version of the National Atlas of the United States 1:1,000,000-scale cities and towns of the United States; those source data were derived from the Geographic Names Information System (GNIS) and the U.S. Census Bureau National Places Gazetteer files. Global Map refers to these locations as Built-up Area (point) and defines them as areas containing a concentration of buildings and other structures (smaller than Built-up Area (face)). National Atlas cities or towns are defined as places with a recorded population, usually with at least one central area that provides...
Types: Citation; Tags: Alabama, Alaska, Arizona, Arkansas, California, All tags...
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This EnviroAtlas web service supports research and online mapping activities related to EnviroAtlas (https://www.epa.gov/enviroatlas). The Food, Fuel, and Materials category in this web service includes layers illustrating the ecosystems and natural resources that provide or support the production of food, fuel, or other materials, the need or demand for these items, the impacts associated with their presence and accessibility, and factors that place stress on the natural environment's capability to provide these benefits. EnviroAtlas allows the user to interact with a web-based, easy-to-use, mapping application to view and analyze multiple ecosystem services for the conterminous United States. Additional descriptive...
Types: Citation; Tags: 12-digit HUCs, Agriculture, Air, Alabama, Alaska, All tags...
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This dataset contains watershed means of estimated percent impervious surfaces for three time periods: 1992, 2002, and 2012. Estimates are based on coefficients derived from comparing land use of the 2012 NAWQA Wall-to-wall Anthropogenic Land-use Trends (NWALT) product to the 2011 National Land Cover Database (NLCD) imperviousness, then applying those coefficients to previous years (1974-2002) of the NWALT dataset.
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The Satellite View of the Conterminous United States, with Shaded Relief map layer is a 200-meter-resolution simulated-natural-color image of the United States. Vegetation is generally green, with forests in darker green and grasslands or shrublands in lighter green. Areas of high reflectance, including urban areas, rock, and dry bare soil, are shown in shades of pink. Very bright areas, such as snow and ice, are colored blue. The image was produced by combining Landsat Thematic Mapper (TM) imagery from the Landsat 4 and Landsat 5 satellites with relief enhanced by shading. This map layer was previously distributed as Satellite View of the Conterminous United States.
Types: Citation; Tags: Alabama, Arizona, Arkansas, California, Colorado, All tags...
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The color conterminous United States shaded relief data were derived from National Elevation Dataset (NED) data, and show the terrain of the conterminous United States at a resolution of 200 meters. The NED is a raster product assembled by the U.S. Geological Survey, designed to provide national elevation data in a seamless form with a consistent datum, elevation unit, and projection. Data corrections made in the NED assembly process minimize artifacts, permit edge matching, and fill sliver areas of missing data. The National Atlas also includes a Lambert Azimuthal Equal Area projection shaded relief file; this file is the same data in an Albers projection.
Types: Citation; Tags: Alabama, Arizona, Arkansas, California, Colorado, All tags...


map background search result map search result map Chesapeake Bay Watershed 2011 Edition Land Cover Data Release EnviroAtlas - Food, Fuel, and Materials Metrics for Conterminous United States Percent impervious surface for selected Chesapeake Bay watersheds USGS Small-scale Dataset - Global Map: Cities and Towns of the United States 201403 Shapefile USGS 1:1,000,000-Scale Federal Lands of the United States - Parkways and Scenic Rivers 201506 Shapefile USGS Small-scale Dataset - Public Land Survey System of the United States 201011 Shapefile USGS Small-scale Dataset - Railroads of the United States 200509 Shapefile USGS Small-scale Dataset - Satellite View of the Conterminous United States, with Shaded Relief 200512 GeoTIFF USGS Small-scale Dataset - Color Conterminous United States Shaded Relief - 200-Meter Resolution, Albers projection 200603 GeoTIFF USGS Small-scale Dataset - 100-Meter Resolution Satellite View with Shaded Relief of the Conterminous United States 201304 GeoTIFF USGS Small-scale Dataset - 1:1,000,000-Scale Congressional Districts of the United States - 113th Congress 201304 FileGDB 10.1 USGS Small-scale Dataset - 1:1,000,000-Scale Ferries of the United States 201406 FileGDB 10.1 USGS Small-scale Dataset - Global Map: 1:1,000,000-Scale Inland Water Areas of the United States 201406 FileGDB 10.1 USGS Small-scale Dataset - Global Map: 1:1,000,000-Scale Railroads of the United States 201403 FileGDB 10.1 USGS National Hydrography Dataset (NHD) Medium Resolution for Maryland 20140807 State or Territory FileGDB 10.1 ADMMR Photo Archive file: Morenci Mine 124-43 USGS Topo Map Vector Data (Vector) 72286 Bombay Hook Island, Delaware 20170222 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 23368 Kenton, Delaware 20170222 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 29128 Middletown, Delaware 20170225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 31903 Newark West, Delaware 20170222 for 7.5 x 7.5 minute FileGDB 10.1 ADMMR Photo Archive file: Morenci Mine 124-43 USGS Topo Map Vector Data (Vector) 72286 Bombay Hook Island, Delaware 20170222 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 23368 Kenton, Delaware 20170222 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 29128 Middletown, Delaware 20170225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 31903 Newark West, Delaware 20170222 for 7.5 x 7.5 minute FileGDB 10.1 USGS National Hydrography Dataset (NHD) Medium Resolution for Maryland 20140807 State or Territory FileGDB 10.1 Percent impervious surface for selected Chesapeake Bay watersheds Chesapeake Bay Watershed 2011 Edition Land Cover Data Release EnviroAtlas - Food, Fuel, and Materials Metrics for Conterminous United States USGS Small-scale Dataset - Color Conterminous United States Shaded Relief - 200-Meter Resolution, Albers projection 200603 GeoTIFF USGS Small-scale Dataset - 100-Meter Resolution Satellite View with Shaded Relief of the Conterminous United States 201304 GeoTIFF USGS Small-scale Dataset - Satellite View of the Conterminous United States, with Shaded Relief 200512 GeoTIFF USGS Small-scale Dataset - Railroads of the United States 200509 Shapefile USGS Small-scale Dataset - Global Map: 1:1,000,000-Scale Railroads of the United States 201403 FileGDB 10.1 USGS Small-scale Dataset - 1:1,000,000-Scale Ferries of the United States 201406 FileGDB 10.1 USGS 1:1,000,000-Scale Federal Lands of the United States - Parkways and Scenic Rivers 201506 Shapefile USGS Small-scale Dataset - Global Map: 1:1,000,000-Scale Inland Water Areas of the United States 201406 FileGDB 10.1 USGS Small-scale Dataset - Global Map: Cities and Towns of the United States 201403 Shapefile USGS Small-scale Dataset - Public Land Survey System of the United States 201011 Shapefile USGS Small-scale Dataset - 1:1,000,000-Scale Congressional Districts of the United States - 113th Congress 201304 FileGDB 10.1