Sereis 3 is comprised of 35mm slides. These materials are in an assortment of 3 ring binders and boxes. Content of the slides most replicates that of the rest of the collection: campus views and buildings, students and student activity, events on campus, botanical gardens, etc.

This collection consists of over 2,000 photographic images that document the history of the campus from its beginnings in the early 20th century as the Citrus Experiment Station to its present form as the University of California, Riverside. The images highlight the development and construction of the university as well as campus life and events. Select images of faculty and staff are also included in this collection.