American History
Online Map Collections
Atlas of the Historical Geography of the United States
Digital Scholarship Lab, University of Richmond
Large digital collection of 16th through 21st century maps of North and South America.
Library of Congress Collection of Maps
Collections of digital maps from the Library of Congress.
Resources of the US Geological Survey including Historical Topographical Map Collection (from 1884) and the National Atlas which includes a map builder feature.
New York Public Library Digital Maps and Atlases
Collection of digitized maps from the New York Public Library.
Gateway to digitized historic maps in libraries around the world. Search for maps by geographic location and limit by date.
Perry-Castañeda Library Map Collection
Collection of digitized historical maps from the University of Texas Libraries.
Atlases
