The Maps Library has a paper collection of approximately 375,000 map sheets. The majority of these maps are government publications, from the United States or other nations, and many have been received as gifts over the past five decades. There are several thousand atlases, nearly 1000 CD-ROMs with cartographic information and dozens of interactive mapping software titles. The Maps Library also provides access to the Internet, where a wealth of digital data can be accessed. The Maps Library is located on the B-level of Paterno.
Access is by elevator or stairwell.