The Ward Lindquist Photograph Collection on Lake Mead (approximately 1945-1956) contains black-and-white photographic prints and negatives primarily from Hoover Dam and Lake Mead, both located in both Arizona and Nevada. The images depict recreational activities at Lake Mead, namely fishing, swimming, boating, and camping. The remaining images depict the exterior and interior of Hoover Dam, as well as nature and wildlife in southern Nevada.

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.

The Edith Giles Barcus Family Photograph Collection (approximately 1878-1954) consists of black-and-white photographic prints and negatives, as well as postcards and photograph albums. The images depict locations in Nevada including Las Vegas, Goldfield, Searchlight, and Tonopah, in addition to locations in Arizona, California, Colorado, Massachusetts, Utah, and Mexico. Also included are images of family, friends, and associates of the Giles Barcus family. The albums contain photographs depicting the Giles family as they traveled through the southwest United States and Mexico, as well as postcards from prominent locations in the southwestern United States.

The Anita Freeman Photograph Collection on Southern Nevada (1937-1972) primarily contains black-and-white negatives depicting locations in Southern Nevada, including the Hoover Dam, Lake Mead, and Mount Charleston. The collection also includes black-and-white negatives of the Helldorado Parade held in Las Vegas, Nevada, as well as landscapes in Arizona, such as the Grand Canyon.

CER Corporation Photograph Collection of Henderson, Nevada Aerials consists of color photographic prints taken on June 6, 1980. The images are aerial views of Henderson, Nevada and were primarily used to document unused land.

Red Rock Audubon Society Records (1981-1996) contain correspondence, field trip notifications, newspaper clippings, fliers, and copies of the Society's newsletter, The Rock Wren.