UNLV Libraries Collection of Mandalay Bay Resort and Casino Promotional Materials and Reports includes annual reports, equity research reports, Securities and Exchange Commission Form 10-K, Securities and Exchange Commission Form 10-Q, press kits, press releases, and promotional materials for Mandalay Bay Resort and Casino in Las Vegas, Nevada, dating from 1996 to 2006.

The Lorelle Nelson Collection on Atomic Testing is comprised of newspaper clippings, magazine and journal articles, correspondence, press releases, fact sheets, fliers, informational handouts and booklets, and newsletters from approximately 1980 to 2009 concerning nuclear weapons testing at the Nevada Test Site, throughout the United States, and internationally. The collection includes information about anti-nuclear groups, committees, and associations, as well as information on the effects of radiation, nuclear fallout, lawsuits and court cases, events and protests, conferences, and local news coverage.

The Peggy Hyde Phillips Papers (1929-1998) document the lives of Peggy Hyde Phillips, her first husband Charles, and her son Michael. Materials include family photographs, correspondence, newspaper clippings, and documents from Michael Hyde’s time as a student at the United States Air Force Academy. The collection also includes a near-complete run of issues from February 1, 1963 through May 8, 1964 of the Paradise Press weekly newspaper from Paradise, an unincorporated township in Clark County, Nevada.

The Perry Kaufman Papers (1930-1974) are comprised of research material gathered by Kaufman for his doctoral dissertation, "The Best City of Them All: A History of Las Vegas, 1930-1960." Kaufman's research focused on the Las Vegas, Nevada Chamber of Commerce's role in promoting Las Vegas as a tourist destination. The collection primarily consists of newspaper clippings from the Las Vegas Review-Journal and the Las Vegas Sun. It also includes Las Vegas Chamber of Commerce minutes and publications, research on the history of Las Vegas, and Kaufman's notes and writings.

The Johnnie Ray Music Scores contain hand-written musical scores from the musician Johnnie Ray that were created between 1958 and 1991. Johnnie Ray was a singer, songwriter, and pianist. He was most notable for the songs "Cry" and "The Little White Cloud That Cried."

The Valda and Esper Esau Collection on Lido de Paris (1954-2014) mainly consists of newspaper clippings, ephemera, and programs documenting the career of entertainer Valda Esau, who danced in the Lido de Paris show at the Stardust Hotel and Casino in Las Vegas, Nevada in the late 1950s. Other materials in this collection include show programs for other shows held in France featuring the Bluebell Girls dance troupe such as the original Lido de Paris. The collection also includes invitation and photographs featuring Esper Esau from Pzazz! '70, a show that was produced by Donn Arden at the Desert Inn Hotel.

The Desert Fishes Council Records (1969-1988) consist of resolutions, meeting minutes, symposium programs, agendas, and press releases of the Desert Fishes Council (DFC). The organization is devoted to the study and preservation of Southwestern desert fishes, notably the desert pupfish. The DFC records reflect efforts to bring the plight of desert fishes to the attention of academics and the public as well as highlight the worth of desert lands within the American environmental movement.