You can use OSCAR to find books that contain maps and maps themselves.
OSCAR is the catalog for Santa Clara University. It tells you everything the library owns or subscribes to, including books that contain maps and maps themselves. It also gives you a physical item's location in the library, or for digital items, the link to access it.
You can use the advanced search to limit to a specific location in the library, like Archives & Special Collections or the Maps Collection (located in the lower level).
Keywords
When searching OSCAR or other library catalogs for books that contain maps, you will need to combine search terms that indicate cartographic material along with keywords that describe you topic, historical period, geographical location, noteable people, etc. Here are some terms you can try combining with with your other keywords:
On the other hand, if you are searching the Map Collection in OSCAR, you do not need to use these types of keywords because the search is already limited to the map format.
Library of Congress Map Collections: 1597 -1988
Leads to many scanned images of historical maps in the library's collections in the following categories:
American Geographical Society Digital Map Collection
Over 1600 scanned historic maps from this unit of the University of Wisconsin, Milwaukee. Online viewer or can print a page-sized view, but can only download thumbnails.