The Union Plaza Photograph Collection, approximately 1970 to 1971, consists of photographic prints and negatives taken during the construction of the Union Plaza Hotel and Casino in downtown Las Vegas, Nevada. Images portray the construction process, the surrounding area and businesses, and the completed project.

The Bill Willard Photograph Collection depicts Las Vegas, Nevada, hotels and casinos in Las Vegas, the Las Vegas Valley, and Laughlin, Nevada from 1905 to 1919 and from 1940 to 1999. The photographs primarily depict hotels and casinos in Las Vegas, including the Sahara Hotel, Circus Circus Hotel and Casino, MGM Grand Las Vegas Hotel and Casino, Caesars Palace, Flamingo Hotel, and the Aladdin Hotel. The photographs also depict students at Nevada Southern University (predecessor of the University of Nevada, Las Vegas), the city of Las Vegas, industrial plants in Henderson and Apex, Nevada, and events in Laughlin, Nevada.

The Larven Mason Photograph Collection (approximately 1930 to 1939) consists of photographic negatives with corresponding black-and-white photographic prints, as well as additional black-and-white photographic prints. The images depict the mining equipment, personnel, operations, and housing for the Blue Diamond Corporation mine in Blue Diamond, Nevada.

The Alan Bible Photograph Collection contains color photographic prints of the Hoover Dam; an aerial of the Colorado River; an Atomic Energy Commission drill rig in Central Nevada; and views of a Nuclear Rocket Development Station (NRDS) facility at the Nevada Test Site between approximately 1970 to 1974. These photographs are captioned and were originally framed and hung in Alan Bible's United States Senate office.

The Irma McGonagill Photograph Collection (1870-1925) consists of thirty black-and-white photographic prints, ten postcards, and fourteen photographic negatives showing Irma McGonagill and her family in Tonopah, Nevada during the mining boom. The images depict the town of Tonopah, mines around the Tonopah area, homes in Tonopah, and the McGonagill family.

The Greg Cava Photograph Collection (approximately 1980 to 2003) is comprised of work created by Las Vegas, Nevada photographer Greg Cava. It includes photographs, negatives, and slides that document Las Vegas entertainment, sporting events, and hotel-casino development. The collection also includes material from Cava's time as photographer for the University of Nevada, Las Vegas (UNLV) athletic events, including photographs, programs, and media guides from the UNLV basketball and football teams.

The Chester Longwell Photograph Collection consists of 608 black-and-white photographic prints dating from approximately 1910 to 1930. The images primarily depict the Longwell family's excursions in the Southern Nevada region, primarily to Mount Charleston, Nevada. Also included are images of Southern Nevada mines and mining towns, as well as Pubelo Grande de Nevada, the Lost City. The remaining images depict geological formations and features, as well as forestry and nature scenes in Nevada and Arizona.