The UNLV Libraries Collection of Hollywood Casino Corporation Promotional Materials and Reports includes annual reports, prospectus, 10-K forms, 10-Q forms, equity reports, financial research, press releases, press kits, a stockholder meeting notice, and promotional materials for Hollywood Casino Corporation in Dallas, Texas, dating from 1992 to 2001.

The River Mountains Trail Partnership Records date from 1995 to 2015 and document the planning and construction of the River Mountains Loop Trail in Clark County, Nevada. The collection contains meeting agendas and minutes, correspondence, project notes, trail maps, land surveys, grant applications, photographic slides of the trail and Lake Mead, environmental assessments, ephemera from National Trails Day, trail guides, interpretive plans, and development reports.

The Leon Rockwell Papers (1829-1986), consist of materials that document Leon Rockwell's life in Las Vegas, Nevada from 1906 until his death in 1968. Included are diaries, correspondence, photographs, postcards, Las Vegas community event programs, ledger sheets, business cards, and scrapbooks. There are a number of books, information on organizations and businesses that Rockwell owned, real estate documents, and early records of the Las Vegas Volunteer Fire Department, of which Rockwell was an original member.

The Stella Champo Iaconis Papers consist of a certificate for proficiency in Rapid Legible Business Writing from the Palmer Method of Business Writing given on May 11, 1927; a certificate of promotion to high school in Clark County, Nevada dated May 25, 1927; and an autograph book signed by classmates at Las Vegas High School in Las Vegas, Nevada in 1928.

The Joe Williams Music Scores date from 1940 to 1991 and comprise the handwritten musical scores of American jazz musician Joe Williams, born Joseph Goreed. Many of the musical scores are Williams' original arrangements.

The Myram Borders Papers (1965-1998) contain articles written by Borders, newspaper clippings, court transcripts, photographs, slides, agendas, meeting minutes, and a copy of the joint operating agreement between the Las Vegas Review Journal and the Las Vegas Sun. Also included are media kits for the Desert Inn Hotel and Casino and the Stealth Fighter Public Debut, an annual report to Sheriff John Moran concerning organized crime, and a copy of the MGM fire litigation.