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 North Las Vegas Chamber of Commerce Records documents the activities of the North Las Vegas Chamber of Commerce in southern Nevada from approximately 1970 to 2007. The majority of this collection is comprised of photographs and scrapbooks documenting North Las Vegas Chamber of Commerce member events. The collection also includes business guides, event invitations, and issues of the organization’s monthly newsletters, Just North and Look North.

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.