The National Atlas provides maps which seek to help users understand the United States and its place in the world. Map topics include agriculture, biology, boundaries, climate, environment, geology, government, history, cartography, people, transportation, and water.
As one would assume, the primary asset of the National Atlas site is maps. The site offers several maps ready for printing which emphasize historical content. The available topics include Native American reservations, presidential elections between 1789 and 2000, territorial acquisition from 1783 through present day, and the spread of the West Nile virus in 2000. A selection of wall maps are presented for purchase, including the presidential election map.
Looking for older maps? You can also peruse the 1970 National Atlas of the United States of America. Unfortunately, maps older than 1970 are not available on this site. Consider searching the Featured Website Reviews on Teachinghistory.org for more options.
If you are not able to find a map that meets your needs, create your own using the Mapmaker. Options are limited, but the feature does permit the mixing of, for example, biological, agricultural, and historical topics.
The site also presents six articles on historical topics—U.S. expansion, the population of Missouri, railroads and maps, and the Civil War.