The Del Webb Corporation Photograph Collection (approximately 1957 to 1988) consists of black-and-white photographic prints, black-and-white oversize reprints, negatives, and color slides focusing on the Mint Hotel and Casino in downtown Las Vegas, Nevada. Images depict the construction of a twenty-six story high-rise addition to the property, its grand opening and anniversary celebrations, the Mint 400 Off-Road race festivities, interior shots of the casino floor, restaurants and lounges, and a salon. Also included are exterior images of properties on Fremont Street considered to be competitors of the Mint, advertisements and billboards, and photographs of Del E. Webb and associates.

The collection is comprised of records of the San Pedro, Los Angeles & Salt Lake Railroad Company (1901-1976). The construction of this railroad led to the founding of Las Vegas, Nevada and the creation of the Empire Construction Company and Las Vegas Land and Water Company. The records document the company's operations and include correspondence and contracts relating to lots in the Las Vegas townsite, payments and accounts, invoices and other audit materials from 1905 to 1923. The collection also includes the records of the railroad agent at Arden Station, located ten miles south of the Las Vegas Station, which contain correspondence, ledgers, freight and way bills, shipping orders, and telegrams.

The Alice Key Papers (1936-2004) consist of documents detailing Alice Key’s life and work in the African American community, historic preservation, and labor relations in Las Vegas, Nevada. Included in the collection are awards and certificates documenting Key’s achievements, invitations and programs to events, political and civic correspondence, and magazine and newspaper articles both about Key and written by her. The collection also contains photographs.

The Maurine and Fred Wilson Papers (1888-1991) contain family papers and the historical research of Fred Wilson. It includes correspondence between Maurine and Fred Wilson, as well as Maurine Wilson’s diaries, calendars, and materials related to her career as a music teacher. The collection also contains Fred Wilson’s research files about the history of Southern Nevada as well as the First Methodist Church in Las Vegas, Nevada.

The Richard B. Taylor Papers (1920-1993) document Richard Taylor's career and interests as a longtime Las Vegas, Nevada businessman and local historian, including his work as an executive at the Hacienda Hotel and Casino. The materials also include maps, development plans, and local publications for the Nevada communities of Laughlin and Mount Charleston, as well as publicity and promotional materials for these projects. As an amateur historian, Taylor also collected information on Las Vegas, Laughlin, and Mount Charleston.

The Colorado River Commission of Nevada Reference Library Collection (1922-2000) documents the history of the Colorado River Commission (CRC) and is predominately comprised of books, briefs, memoranda, motions, exhibits, and other documents pertaining to the Arizona v. California litigation occurring between 1931 and 2000. The collection also contains meeting minutes, correspondence, budgets, reports, and other work files relating to the CRC. The CRC, located in Las Vegas, Nevada, is responsible for managing and protecting Nevada’s Colorado River water and power resources.

The UNLV Libraries Collection on the Las Vegas Paiute Tribe (approximately 1974-1990) contain oral history transcripts of Paiute community members from approximately 1974 to 1977 and reproductions of Bureau of Indian Affairs correspondence, legal documents, annual reports, and census information regarding the area formerly known as the Las Vegas Indian Colony located in Las Vegas, Nevada. The documents contain information about the original transfer of property ownership from Helen J. Stewart to the United States, who acted on behalf of the Paiute people in 1911, the establishment of the original site location, and annual reports which include a narrative about the community, census information, and health reports of the population living in the area. The collection contains no original documents.