The Walking Box Ranch Collection (1917-2011) includes material collected by the University of Nevada, Las Vegas (UNLV) Public Lands Institute on the Searchlight, Nevada ranch. Materials include a maps related to the construction and operation of the ranch, a pair of chaps owned by Rex Bell, Jr., and color slides of the ranch. Also included are photographic prints of Rex Bell and Rex Bell, Jr., and newsclippings related to the film and political career of Rex Bell. A small number of newsclippings pertain to the career of Rex Bell, Jr.

The Walking Box Ranch Collection (1880-1979, bulk 1930-1945) contains digital images compiled by the University of Nevada, Las Vegas (UNLV) Public Lands Institute. The collection consists of images of the Walking Box Ranch (Searchlight, Nevada), the Mojave Desert, and the Bell Family, consisting of American film stars Rex Bell, Clara Bow, and their children. There are also candid and professional photographs of Rex Bell and Clara Bow taken at various locations, some of which include friends and other family members, as well as a large number of unidentified film stills from Rex Bell movies. Images in this collection are from Bell family photograph albums and assorted prints, and were reformatted into digital images by the UNLV Public Lands Institute.