Coolidge Dam Construction, Central Dome from Water Level. Pinal County, Arizona, 1928

The Carl T. Hayden Photograph collection houses 2,431 photographs documenting Carl T. Hayden and the extended Hayden family. Among the subjects depicted are legislation and committee work; the U.S. military (including bases and operations, World War I, Luke Air Force Base, Fort Huachuca, Marana Air Base, and the Arizona National Guard); water projects (including the Yuma-Gila Irrigation Project, Coolidge Dam, the Florence Diversion Dam, Buttes Dam, and floods); Native Americans (including the San Carlos Indian Reservation, the Colorado River Indian Reservation, and the Fort Mohave Indian Reservation); Native American archaeology (including Pueblo Grande and Casa Grande); the Panama Canal; and the Grand Canyon. Other photographs include portraits of politicians, campaigns, and Hayden's funeral. Most of these images are silver gelatin photographic prints.