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United States Map Viewer


Mapping viewer with US spatial data infrastructure services, offered by different public bodies of its administration. Allows you to explore topographic maps, orthophotos, relief or hydrography of the US.

Mapping used:

  • USGS Topo is the national map of the United States containing the datasets of national boundaries, 3DEP elevation program, geographic name information system, national hydrography dataset, national land cover database, national structures dataset, and national transportation dataset; USGS Global Ecosystems; U.S. Census Bureau TIGER/Line Data; USFS Road Data; Datearth's Natives; U.S. Department of State Humanitarian Information Unit; and NOAA National Centers for Environmental Information, U.S. Coastal Relief Model. US
  • USGS Orthophoto is an orthophoto mosaic cache basemap service on the National Map visible at the 1: 9.028 zoom scale. Orthoimage data is usually ihigh-resolution aerial images that combine the visual attributes of an aerial photograph with the spatial accuracy and reliability of a planimetric map. The resolution of the USGS digital ortho image can range from 6 inches to 1 meter. In the first resolution, each pixel of an orthoimage covers a six-inch square of the earth's surface, while in the lastresolution, each pixel represents one square meter. Blue Marble: Landsat and next-generation image data sources are displayed at small and medium scales; however, most of the imagery service source comes from the National Agricultural Imaging Program (NAIP) for the contiguous United States. The data has a pixel resolution of 1 mecollected under “sheet set” conditions. The NAIP image collection is managed by the U.S. Department of Agriculture's Agricultural Services Agency (FSA). In areas where NAIP data is not available, other images can be acquired through partnerships with the USGS. For Alaska, SPOT images with a resolution of 10 meters are provided for yourvisualization. The National Map download client allows free downloads of public domain ortho images with 1 meter resolution in JPEG 2000 (jp2) format for the continental United States. However, 10-meter Alaskan orthoimage data will not be available for direct download from the National Map due to licensing restrictions.additional guidance on orthoimaging, visit
  • USGS Shaded Relief Base Maps from The National Map was created with 3D Elevation Program (3DEP) data for large and medium scales (1: 9.028 to 1: 1.155.581) and Multiple Resolution 2 Global Terrain Elevation Data010 (GMTED2010). for small scales (1:2,311,162 to 1: 295,828,764). 3DEP maintains an integrated dataset with the best available raster elevation data, such as LIDAR and as digital elevation models (dem), for the United States, Alaska, Hawaii, and the contiguous Territorial Islands. Available resolutions include 1 meter, 3 meters (1/9 second of arc), 10 meters (1/3arcsecond), 30 meters (1 arcsecond), and 60 meters (2 arcsecond; Alaska only). 3DEP also contains coverage of Canada, Mexico, Central America, and the Caribbean with a resolution of 30 meters (1 arcsecond). 3DEP shaded relief was obtained with a multi-directional shading technique. The small scale shaded relief was created with a single direction from GMTED2010 global elevation data with resolutions of 7.5, 15, and 30 arc seconds, and resampled for scales of 1:18.489.298 and below. Ocean areas are left empty for maximum flexibility by end users. For additional information, visit, impacts and
  • The National Hydrographic Dataales (NHD) is a comprehensive set of digital geospatial data that encodes information about constructed and natural surface water bodies, paths through which water flows, related features such as current and dam meters, and additional hydrological information. It is available across the country in a continuous dataset at scale1:24,000, known as high-resolution NHD. NHD supports many applications, such as mapping, geocoding of observations, flow modeling, maintenance, and data management. For additional information, visit Additional datasets are also used for hydrography representationsmall-scale, including the medium-resolution NHDPlus published by the EPA; USGS Small-Scale Hydrography; and ETOPO1 Global Relief bathymetry, provided by NOAA's National Centers for Environmental Information, U.S. Coastal Relief Model. US

Source and download of official data:

  • United States Geological Survey (USGS): < a href="">