The National Map represents the joint contributions of many federal agencies to provide maps and geospatial data for a variety of themes. The website provides access to topographic maps, historical maps, elevation data, hydrography data, and geospatial data.
Since the retirement of the 1997-2014 Edition of the National Atlas of the United States, The National Map now offers a collection of 197 small-scale datasets that can be downloaded for free. Additionally, the Set of Dynamic Topographic Maps Illustrating Physical Features and hundreds of printable maps are offered by The National Map.
The National Map Small-Scale Collection website also links to Global Map, an international effort by national mapping organizations to produce consistent and accurate mapping data of the world at a scale of 1:1,000,000.
The National Map publishes two data collections at one million-scale: one for Global Map users and one for National Map users. In terms of vector geometry, the lines, points, and areas in these data collections are identical. The difference is in the attributes assigned to these features.
