Materials contain photographic slides of the Old Spanish Trail from the 1970s and 1980s. Materials are stored in the Photograph Collection Negatives boxes and Photograph Collection Slides binders.

The Old Spanish Trail was a trade route that linked Santa Fe, New Mexico with Los Angeles, California, and had been in use by Spanish explorers in the sixteenth century. It was named by John C. Frémont in 1844 after he traversed the trail for the U.S. Topographical Corps. In 2001, the portion of the trail in Nevada was added to the National Register of Historic Places.

Materials contain photographs of Nevada from 1934 to 1976.