The Union Pacific Railroad Photographs depict the Union Pacific Railroad Company's tracks, depots, locomotives, and stations in Southern Nevada and Southern California from 1904 to 1973. The photographs primarily depict Union Pacific officials in Las Vegas, Nevada, construction of Boulder City, Nevada and the Hoover (Boulder) Dam, hotels and casinos in Las Vegas, and the aftermath of flooding in 1938 that damaged Union Pacific tracks.

The Henry C. Wieking Photograph Collection contains black-and-white photographic prints and negatives, as well as postcards of Las Vegas, Nevada between approximately 1920 and 1940. These images primarily depict Wieking and his family in front of the Las Vegas Mormon Fort and Hoover Dam (Boulder Dam). Other photographs include Six Companies and United States Bureau of Reclamation vehicles, Mount Charleston, the Colorado River, Black Canyon, and desert scenes. The remaining images depict Barstow and Death Valley, California; and a Grand Canyon bridge in Arizona.

The Ward Lindquist Photograph Collection on Lake Mead (approximately 1945-1956) contains black-and-white photographic prints and negatives primarily from Hoover Dam and Lake Mead, both located in both Arizona and Nevada. The images depict recreational activities at Lake Mead, namely fishing, swimming, boating, and camping. The remaining images depict the exterior and interior of Hoover Dam, as well as nature and wildlife in southern Nevada.

The Junior League of Las Vegas Photograph Collection contains photographic prints and negatives, as well as postcards of locations in and around Las Vegas, Nevada between approximately 1900 and 1980. Early photographs in the collection offer views of the Las Vegas townsite, buildings, railroads, the Las Vegas High School, Overland Hotel, Arizona Club, and residential areas. Other photographs during this time depict the Hoover Dam (Boulder Dam) construction and Death Valley, California. Later photographs show the University of Nevada, Las Vegas (UNLV) campus, downtown Las Vegas, and the Las Vegas Strip.

The UNLV Libraries Single Item Accession Photograph Collection (approximately 1869-1999) contains photographs, postcards, negatives, and slides primarily pertaining to Southern Nevada, with a focus on Las Vegas, Nevada, collected by the University of Nevada, Las Vegas University Libraries, Special Collections and Archives. The collection primarily includes images of early Las Vegas, hotels and casinos along Fremont Street and the Strip, railroad infrastructure, local businesses, and residential neighborhoods. Also included are images of Hoover (Boulder) Dam's construction, MX Missile testing, Nevada mining camps, and the natural desert environment. Other images depict towns throughout Nevada including Boulder City, Henderson, Reno, Luning, Tonopah, Goodsprings, Delmar, Beatty, Panaca, Overton, Caliente, Logandale, and Aurora.

The Murphy-Farmer collection contains black-and-white photographic prints (approximately 1930-1959) depicting locations around southern Nevada, including Lake Mead, Hoover Dam, Las Vegas, and Boulder City, Nevada.

The Ernest Mitchell Pratt Photographs (approximately 1932-1936) consist of black-and-white photographic prints, signed and unsigned, taken by Pratt while Hoover Dam was under construction. Many prints are signed and mounted, and two are noted as award-winning photographs shown at the Annual International Salon of Camera Pictorialists in Los Angeles, California. There are additional working prints included alongside the final prints for most of the scenes. Also included in the collection is one small photograph of Pratt. This collection was formerly known as the Price Photograph Collection.