The Avery E. Field collection contains several thousand images documenting the growth and development of Riverside, California in the first half of the 20th century. A large portion of the collection is comprised of images featuring local residents and their involvement in various events such as parades, celebrations, and weddings. The architectural history of the city is also well documented, as there are images of both residential and commercial buildings, including approximately 1,000 images of the Mission Inn. Portraits of local families, images of the region's geographic landscapes, and photographs of artwork are also contained in this collection. A variety of media formats are represented in this collection, including standard photographic prints and negatives, panoramic photographic prints and negatives, lantern slides, and glass plate negatives.