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28 Δεκ 2021 · The National Map is a collection of free, nationally-consistent geographic datasets that describe the landscape of the United States and its territories. Included in The National Map are the latest elevation data from the 3D Elevation Program (3DEP) , surface water data from the National Hydrography Datasets (NHD) , and place name data from the ...
3 Νοε 2022 · Included in The National Map are the latest elevation data from the 3D Elevation Program (3DEP), surface water data from the National Hydrography Datasets (NHD), and place name data from the Geographic Names Information System (GNIS).
The vector datasets include: The National Hydrography Dataset(s), Watershed Boundary Dataset, Governmental Boundary Units, Transportation, Structures, Elevation Contours and Geographic Names. Raster datasets include: Digital Elevation Models (DEMs), Orthoimagery, and Land Cover.
The National Elevation Dataset (NED) is the primary elevation data product produced and distributed by the USGS. The NED provides seamless raster elevation data of the conterminous United States, Alaska, Hawaii, and the island territories.
Click on the map to display elevation. The topography of the United States is characterized by diverse and dynamic landscapes that vary widely across the country. In the east, rolling hills and low mountains transition into the Appalachian Mountains, featuring peaks that generally reach around 6,684 feet.
The U.S. Geological Survey hosts topoView, an interactive database of the survey’s topographic maps. The map is searchable by address, and clicking on any point on the map brings up topographic maps of the area dating back to 1879. Map results can be narrowed further using scale and date filters.
We've added the ability to preview maps within the interface and give you tools to compare any historical map with maps of the present. Filters and searches work seamlessly with the map records table to get you the info you need with fewer clicks.
