The papers relating to Rafe Gibbs Beacon for Mountain and Plain span the years 1889 to 1962, with the bulk of the material covering the years 1930 to 1961.

Included in the records are historical materials related to the University of Idaho, a typescript of the book, a few photographs, the art work used for the end-papers, correspondence with Caxton Printers relating to the publishing of the book, and correspondence from those to whom the book was sent.

The research materials of C.J. Brosnan, from which Gibbs drew heavily, are in Manuscript Group 18.