The Nellis Air Force Base Photograph Collection contains photographs of Nellis Air Force Base and its predecessor, the Las Vegas Army Airfield, as well as photographs of Rockwell Field and McCarran Airport in Las Vegas, Nevada from 1926 to 1980. The materials contain photographs of military aircraft, hangars, buildings on the base, and aerial photographs of Las Vegas and the surrounding area. The materials also include photographs of the entrance of McCarran Airport, U.S. Senator Pat McCarran, and a mail plane arriving at Rockwell Fields in 1926.

The Greenpeace Pacific Southwest Records are comprised of files and documents pertaining to environmental activism in Southern Nevada from 1962 to 1994, primarily addressing the organization of protests at the Nevada Test Site. The collection contains newspaper articles, newsletters, publications, financial records, protest information, correspondence, meeting minutes, articles of incorporation, Freedom of Information Act requests, and Nevada Test Site information. Also contained in the collection are maps and documents related to various environmental issues such as nuclear waste, land use, wildlife protection, and international environmental activism.