The California Museum of Photography in Riverside, part of the University of California, Riverside, holds the western United States’ most extensive photographic collections across art, history, and technology. Its holdings include the Bingham Technology Collection of about 10,000 cameras and related devices, the University Print Collection with more than 20,000 images by over 1,000 photographers, and the vast Keystone-Mast Collection of stereoscopic negatives and prints documenting life around the world from 1860 to 1950. Through its library, imaging center, and long-running digital initiatives, it has made major photographic resources accessible far beyond Riverside.