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 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.