Atlases are kept in the Reference Collection on the 3rd floor of Case Library, and maps are in Dempsey Reading Room, behind the Reference Collection. Most maps are not cataloged, all atlases are. Find the cataloged maps and atlases in the catalog by doing an advanced keyword search and limiting the locaton to CASE maps.
Most of these sites have geospatial data in addition to maps.
Colgate University Libraries | 13 Oak Drive, Hamilton, NY 13346 | 315-228-7300