The C. C. (Clio Cline) Mobley Photograph Collection (approximately 1911 to 1917) consists of sixteen black-and-white photographic prints with corresponding photographic negatives. The images depict the Las Vegas, Nevada Ranch while the Mobley family leased it from the Union Pacific Railroad during the period. The photographs depict the home, swimming pool, the Old Las Vegas Mormon Fort, and orchards and streams on the property.

The Clark County 208 Water Quality Management Plan Records contain reports produced by consultants and agencies for the Clark County Board of County Commissioners to create the Clark County, Nevada 208 Water Quality Management Plan (1960-1990). The collection also includes amendments and studies about the implementation of the plan.

The Las Vegas Bugle Collection on Lesbian, Gay, Bisexual, and Transgender (LGBT) History (1984-2002) consists of correspondence, newspaper clippings, photographs, and ephemera chronicling issues of the LGBT communities in Nevada. In addition to records of the newspaper, the Las Vegas Bugle, the collection also contains documents pertaining to the founding of the Gay Community Service Center of Las Vegas, Nevada; Parents, Families, and Friends of Lesbians and Gays (PFLAG); local political campaigns; and photographs documenting LGBT life and culture in Las Vegas, Nevada.

The Si Zentner Collection of Music Scores consists of copyright agreements and original music scores from the career of musician Si Zentner. The manuscripts span from 1957 through 1996.

The Evelyn Stuckey Papers date from 1940 to 1972 and document Stuckey's experience as a physical education teacher at Las Vegas High School (LVHS) in Las Vegas, Nevada and founder of the LVHS Rhythmettes dance group. The collection contains personal and educational materials from Stuckey’s college years, personal correspondence, and photographs. It also contains materials documenting the Rhythmettes' activities including travel plans, posters and fliers, news clippings, and group rosters.

The Las Vegas Professional Sports Teams Collection (1988-2008) consists of brochures, ephemera, and programs from various Las Vegas, Nevada sports teams. Teams include the Coyotes, Dustdevils, Flash, Thunder, Silver Streaks, and Wranglers. The sports include basketball, ice hockey, inline hockey and indoor soccer.

The State of Arizona vs. State of California Proceedings Concerning the Colorado River Usage Dispute collection (1957-1961) contains supplemental documents from the Arizona v. California Supreme Court case that began in 1931 and ended in 2000, including briefs, objections, requests for admissions of facts, rebuttal outlines, witness outlines, comments, and requested findings of facts.