The Yucca Mountain Site Characterization Office collection (1958-2001) was assembled through a joint effort between the Nuclear Regulatory Commission (NRC) and the James R. Dickinson Library, University of Nevada, Las Vegas (UNLV) to provide public access to documentation and correspondence about the proposed high-level radioactive waste geologic repository site near Yucca Mountain, Nevada. Materials include technical reports, contractor reports, public hearing transcripts, safety evaluation reports, environmental impact statements, emergency plans, inspection reports, licensee event reports, and general communications. The collection includes documents from several other government entities such as the Yucca Mountain Site Characterization Office, Department of Energy, Office of Civilian Radioactive Waste Management (OCRWM), Nevada Nuclear Waste Storage Investigations (NNWSI), United States Geological Survey (USGS), Sandia National Laboratories, Lawrence Livermore National Laboratory, and Los Alamos National Laboratory.

The Southern Nevada Historical Society Photograph Collection on Basic Magnesium, Inc. contains photographs of the construction of Basic Magnesium Inc.'s plants and buildings from 1941 to 1942. The photographs primarily depict aerial views of the plant site and various buildings, including the administration building, tent camp, chlorination buildings, electrolysis facilities, electrical distribution systems, and warehouses. The photographs also depict Lake Mead and the early buildings in Henderson, Nevada.

The Howard Hughes Public Relations Photograph Collection depicts the activities of businessman Howard Hughes from 1930 to 1950. The photographs primarily depict aircraft flown by Hughes or designed by the Hughes Aircraft Company, including the XF-11 reconnaissance plane, the HK-1 Hercules (or "Spruce Goose"), and the Hughes H-1 Racer. The photographs also depict celebrations following Hughes's circumnavigation flight in New York City, New York and Chicago, Illinois in 1938. Lastly, the photographs include Hughes testifying in front of the Senate Special Committee to Investigate the National Defense Program in 1947.

The Nat Hart Professional Papers contain the business records, personal papers, and photographs of Las Vegas, Nevada chef and restaurateur Nat Hart, who served as the Corporate Vice-President of Food and Beverage for Caesars World in the 1970s and 1980s. Papers date from 1930 to 2000 and include restaurant training and service manuals, business proposals, architectural drawings, recipe cards, cookbooks, menu specifications, photographs, scrapbooks, awards, news releases, and correspondence.

The Eugene Martin Christiansen Papers (dating from 1948 to 2017, with the bulk of the materials dating from 1975 to 2005) contain research files, reports, and presentations about gambling written and collected by gaming consultant Eugene Martin Christiansen. Most of the collection is comprised of research files and reports about legalized gambling, casinos, hotels, racetracks, and entertainment venues, including the economic impacts of legalized gaming, feasibility studies for opening new casinos and racetracks, popularity of off-track betting, horse and dog racing, table games, gambling addiction, gaming regulation, taxes, lotteries, and Native American gaming. The collection also includes research files covering state and municipal regulation of gaming, significant individuals in the gaming industry, prominent hotels and casinos, gaming research conferences, financial reports, and international regulation of gaming. The collection also contains a small amount of business records from Christiansen’s entertainment company Feature Film Finance & Production.

The Gene Hertzog Professional Papers (approximately 1930-2015) are comprised of photographs, slides, transparencies, publications, video cassettes, correspondence, and digital files spanning Gene Hertzog's working years with the United States Army, the Bureau of Reclamation, and as a freelance photographer and videographer based in Southern Nevada, New Mexico, and Washington state. The collection documents the complicated infrastructure required to supply water to the Las Vegas Valley and includes still and moving images of the Springs Preserve, Lake Mead National Recreation Area, the Colorado River, and the Columbia Basin. The majority of the collection comes from Hertzog's time as a regional photographer for the Bureau of Reclamation and offers a unique glimpse into the Bureau's work in Southern Nevada, the southwest, and the Pacific Northwest from the 1950s to the mid-1990s.

The Irwin and Susan Molasky Papers (early 1900s-2012, bulk 1970-2012) primarily contain materials related to real estate development work by Irwin Molasky with his company, the Molasky Group of Companies, in Las Vegas, Nevada. In addition, the collection includes personal photographs (early 1900s-2011, bulk 1970-2011) of family members, friends, and events, as well as a Proclamation from Clark County, Nevada to establish the Molasky Family Park.