University of Chicago Map Collection
The Newberry Library
Home of an extensive Map Collection and the Herman Dunlop Smith Center for the History of Cartography
Illinois State Library Map Collection
Library of Congress Geography and Map Division
National Archives Cartographic and Architectural Records
The National Archives holds large amounts of cartographic information documenting the history of the United States
University of Texas – Perry-Castañeda Library Map Collection
Cartographic Reference Resources provides links to a wide range of tools and resources
American Geographical Society Library, UW Milwaukee
Harvard University
Harvard Map Collection. Includes links to extensive collection of scanned maps
Pennsylvania State University
Donald W. Hamer Maps Library
University of California, Los Angeles
Cartographic Resources: Maps, Atlases, GIS
University of California, Santa Barbara
Geospatial Collection
The Alexandria Digital Library
Created at the University of California, Santa Barbara
University of of Florida
Map & Imagery Library
University of Oregon
Map & Aerial Photography Library
University of Washington
Map Collection and Cartographic Information Services Unit