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 Joseph LaMar Foremaster Photograph Collection includes black-and-white photographic prints and negatives of structures at the Old Ranch (Stewart Ranch) in Las Vegas, Nevada from approximately 1920 to 1939 when the Foremaster family lived and worked on the land.