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 James Reece Photographs of El Rancho Vegas depict the Las Vegas Strip's first hotel, El Rancho Vegas, in Las Vegas, Nevada, from approximately 1950 to 1962. The photographs depict a craps table and its operators, owner Beldon Katleman with Eleanor Roosevelt, the hotel's exterior, and military servicemen photographed with one of El Rancho's entertainers, Yvette Dare.

The UNLV Libraries Collection of Lady Luck Gaming Corporation Promotional Materials and Reports includes annual reports, financial reports, press kits, press releases, and promotional materials for the Lady Luck Gaming Corporation in Nevada, Colorado, Iowa, Mississippi, and Missouri, dating from 1993-1995.

The UNLV Libraries Collection of UNLV Libraries Collection of Caesars World, Inc. Promotional Materials and Reports includes annual reports, financial reports, press kits, press releases, promotional and publicity materials, a proposal for Caesars New Orleans, and newspaper and magazine clippings for Caesars World, Inc. in Las Vegas, Nevada and Atlantic City, New Jersey, dating from 1965-2006.

The Leonard Blood Papers (1888-1962) consist photographs and personal documents from his work in the United States Navy, Las Vegas Labor Commission, and on the Boulder (Hoover) Dam in Nevada. The bulk of the papers date between 1930 to 1950. Included are correspondence, telegrams, newspaper clippings, a scrapbook, family photographs, and various ephemera.

The Roger D. Foley Papers on United States v. Cappaert are comprised of materials collected by District Judge Roger D. Foley while performing his duties as judge in United States v. Francis Leo Cappaert, et al. from 1972 to 1976. The collection includes transcripts of the case, exhibits, and copies of motions filed with the Court in regards to this case, which centered on the protection of the Devils Hole pupfish in Nevada.

Caesars Palace Photograph Collection (approximately 1965-1989) depicts the famous Caesars Palace Hotel and Casino. The collection consists of twenty-seven images of iconic scenes of Caesars Palace, including its architecture, restaurants, and hotel suites.