Search Geology – [place] – Maps, replacing [place] with the name of the place for which you'd like to see a map. For example, Geology – United States – Maps.
Use the limiters on the left-hand side of your search results page to restrict the item format to "Map"
"The American Geographical Society Library Digital Map Collection contains over 8000 maps, ranging from early maps of Asia to historical maps of Wisconsin and Milwaukee, and other American cities, states, and national parks. The digital collection is under continuing development."
Bibliographic records for books, maps, government reports, conference papers, and theses and dissertations in geosciences. Limit your publication type to "map" to search for maps.
Consortium dedicated to basic research and education in geographic information science and its related technologies, including geographic information systems (GIS)