The Betty Ham Dokter Photographs depict the Ham Family from 1850 to 1976. The materials include photographs of the family after they moved to Las Vegas, Nevada in 1916 and document the early growth of the city. The materials also include photographs of the Colorado River, the Hoover (Boulder) Dam site before and after its construction, dinner parties, family photographs, and citizens of the Las Vegas area. The materials also include photographs of Alta Mereness Ham, Betty Ham Dokter's mother, on the set of the film Water.
The Yucca Mountain Environmental Safety Collection (1970-2011) consists of reports and impact studies collected by Clark County's Nuclear Waste Division library for documenting Yucca Mountain's potential health and safety risks to Southern Nevada. The reports contain documents pertaining to potential environmental, health, financial, and safety risks from the Yucca Mountain Nuclear Waste Repository, which is located in Nye County, Nevada. The collection contains scientific and social studies in support of and opposition to the site. The bulk of the collection includes licensing reports, site selection studies, and impact studies from transporting, storing, and handling radioactive waste and spent nuclear fuel.