This collection contains the papers of Reno H. Sales, including diaries (1911, 1920-1935, 1937-1960, 1963-1968); incoming and outgoing correspondence (1957-1968) concerning Underground Warfare at Butte, the Cowboy Hall of Fame, and other matters; writings, including a draft of Underground Warfare at Butte; clippings, and miscellany. In addition, there is a subgroup for the Valley Ditch Company, including correspondence (1957-1968), financial records (1945-1965), legal documents, minutes (1906-1964), and organizational materials.