The Allied Arts Council of Southern Nevada (AACSN) Records are comprised of the organizational records of the Allied Arts Council, a Las Vegas, Nevada-based non-profit organization that promoted the arts and cultural life in Southern Nevada from 1971 to 1999. Materials include meeting minutes, financial records, correspondence, membership information, publications, event information, project files, photographs, audio cassettes, VHS, and U-Matic tapes.

The Junior League of Las Vegas Photograph Collection contains photographic prints and negatives, as well as postcards of locations in and around Las Vegas, Nevada between approximately 1900 and 1980. Early photographs in the collection offer views of the Las Vegas townsite, buildings, railroads, the Las Vegas High School, Overland Hotel, Arizona Club, and residential areas. Other photographs during this time depict the Hoover Dam (Boulder Dam) construction and Death Valley, California. Later photographs show the University of Nevada, Las Vegas (UNLV) campus, downtown Las Vegas, and the Las Vegas Strip.

The collection, 1949 to 2006, was compiled by Clifford Olsen, a containment physicist at the Nevada Test Site (NTS). It consists of research notes and working papers written by Olsen and other scientists, publications, epoxy aggregate samples, work-related correspondence, nuclear-test-event data, and interviews conducted by Olsen with work colleagues involved with the NTS.