The Kiel Ranch Preservation Committee Records (1973-2005) document the activities of the North Las Vegas Bicentennial Committee (1973-1976) and its successor, the Advisory Board for Kiel Ranch (1978-1995), in their efforts to restore Kiel Ranch, one of the earliest non-indigenous settlement sites in the Las Vegas, Nevada area. The collection contains various official reports on Kiel Ranch, proposals on how to restore Kiel Ranch, chronological files for each year of the project, and newspaper clippings on the status of Kiel Ranch.

The Ray Cutright Collection of Winthrop A. Davis Photographs (approximately 1929-1939) consists of black-and-white photographic prints with some corresponding negatives and slides of the construction of Hoover Dam and the geographic terrain of southern Nevada during the early 1930s. Included are photographs of the geographic area around the dam site, Black Canyon, and Boulder City, Nevada. Photographs depict the construction of facilities and roads needed for the project.