The State College Change Through Time project took the initial steps of georeferencing and mosaicing the scanned maps. Information about the 4,000 buildings was extracted by hand using ArcGIS Desktop. Historical photographs from Penn State’s Eberly Family Special Collections Library were linked to individual buildings for each time-period where available to give context to the map and to also make these resources geographically discoverable. Advertisements for local businesses were harvested from historical publications and linked to the buildings that businesses once occupied.  When brought together in this map series, these resources paint an interactive and vivid picture of what campus and town were like, and the dynamic growth that Penn State and State College experienced during the early part of the 20th Century. These maps also provide data about campus and town in geographic context that can be repurposed for other research goals.