This division of the Perry-Castaneda Map Collection provides access to 500 historical maps of the U.S. Maps are sorted thematically and include three maps of early inhabitants, 11 of exploration and early settlement from 1675 to 1854, and 15 of territorial growth from 1775 to 1970. Of the 95 military history maps covering engagements from 1763 to 1967, 50 are about World War II alone.

Among 183 late 19th- and 20th-century maps, there are 146 of U.S. cities produced around 1920. Historic sites, memorials, and battlefields are represented in 191 maps of sites such as Aztec ruins in New Mexico, the Bering land bridge in Alaska, and the Vicksburg battle site in Mississippi. Most of the maps are excerpted from 20th-century historical atlases. The site will be particularly useful for research in military history and early 20th-century urban history.

By the time Thomas Jefferson became the third President of the United States in 1801, interest in exploring the West had begun to shape U.S. policy. This chronological narrative traces Jefferson's life, participation in politics, and accumulation of scientific geographical knowledge from 1735 to 1804. There are four main sections: "The Jeffersons and Their Frontier Virginia Neighborhood," "From Colony to Commonwealth," "Science and Statecraft at Home and Abroad," and "Public Servant to the Early Republic."

This narrative is accompanied by an archive of 169 letters, statues, books, treaties, maps, and journals providing primary source insight into Jefferson's thoughts about the West and the Lewis and Clark expedition in particular. Three interactive maps from the 1700s, overlaid with historical data about cities, private dwellings, natural features, courthouses, and waterways, provide important insight into the geographic and social environment at the time.

This large collection of maps from the 16th century to the present day focuses on Americana and cartographic treasures.

Materials are organized into seven thematic categories—Cities and Towns, Conservation and Environment, Discovery and Exploration, Cultural Landscapes, Military Battles and Campaigns, Transportation and Communication, and General Maps. Sections include five special presentations.

Users may download maps or zoom in to view details. Seventeen specific map collections contained within this larger site that are of particular importance for the study of American history include "Discovery and Exploration," "The American Revolution and Its Era," "Railroad Maps, 1828–1900," "American Colonization Society Collection: Maps of Liberia, 1830–1870," "Panoramic Maps, 1847–1929," "Civil War Maps," and "Mapping the National Parks."

Texts about the Americas produced in Europe from the 15th through the 19th centuries are examined in this well-organized online exhibit. Over 100 images of printed texts, drawings, artwork, and maps from published and unpublished sources are arranged into six thematic categories. Categories are named: "Promotion and Possession," "Viewers and the Viewed," "Print and Native Cultures," "Religion and Print," "New World Lands in Print," and "Colonial Fictions, Colonial Histories."

Five scholarly essays (5,000 to 7,000 words each) contextualize the documents. A bibliography and list of links accompany the presentation. A visually attractive, thoughtfully arranged site that explores connections between colonization and representation.

The images in this collection, focusing on the Americas, come from books printed or created in Europe between about 1492 and 1825. Images include woodcuts, copper engravings, and paintings. The database, still being compiled, currently contains 6,685 images and will eventually contain some 7,500 images. Image viewing software is available from the site.

The visitor can browse the entire archive or search by time period, geographical area, keyword, or subject, including indigenous peoples, flora and fauna, artifacts, industry, human activities, geography, maps, city views and plans, and portraits. Some images, such as Ptolemy's map of the world, may be familiar. Others are reproduced for the first time. Navigation requires some practice, but is worth the effort.