The papers of Robert E. McDole span the years 1966 to 1990. Included are chronological files of papers given by McDole to professional groups, copies of publications, press releases, newspaper clippings, and correspondence related to presentations. Also included are photographs of soil conservation methods, a soil survey of the University of Idaho which includes not only the publication, but also slides and photographs, and loess survey notebooks from 1966-1968. Two items, folders concerning the use of bark in soil and a collection of reprints on soil testing predate McDole's arrival at the university and may have been originally maintained by Roger Harder and G. Orien Baker.