This collection consists of materials accumulated by Hans L. Bille during his tenure as Montana's surface water rights coordinator. Subject files (1938, 1962-1968, undated) relate to the Flathead Irrigation Project, the "Fort Belknap Indian Irrigation District", and the Tongue River Project. Miscellany (1955, 1971, undated) consists of a U.S. Bureau of Reclamation annual project report history for the Milk River Project, and various documents relating to Montana water law and rights.

These records of the Montana Attorney General's Office consist of interoffice correspondence (1969-1978); general correspondence (1963-1966) arranged by correspondent and subject, including dockets and informal opinions; annual reports (1973-1977) of tax-exempt private foundations; speeches; and miscellany. (Reel-to-reel tapes transferred to Oral History)