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.

Collection is comprised of materials dating from approximately 1971 to 1996 about the Las Vegas Clark County Library District. Collection materials also include Charles Hunsberger's subject files from when he was library director of LVCCLD. The collection includes annual financial reports, clippings about the library district, photographs, master plan documents for Nevada libraries, and staff newsletters. In addition, the collection also includes materials documenting Hunsberger's efforts to secure a $22.2 million library bond in 1985.

The Howard Booth Papers are comprised of the personal papers of environmental activist Howard Booth from 1964 to 2017. The collection includes information about Booth's efforts to help turn Red Rock Canyon into a National Conservation Area. Booth was a member of multiple conservation organizations and the collection includes meeting minutes and newsletters from the Toiyabe chapter of the Sierra Club. The collection also contains correspondence, newspaper clippings, official reports, newsletters, and meeting minutes collected by Booth from various environmental organizations. The papers also include numerous photographic slides with handwritten captions Booth took of Red Rock and the surrounding area from the early 1980s to 2000s.

The Southern Nevada Telephone Company Collection documents the history of the company from 1957 to 1966. The collection includes photographs and internal publications that illustrate the company's growth and role in Las Vegas' history. It also contains a photocopy of A History of the Southern Nevada Telephone Company, 1907-1961.

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.

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.