The nine boxes of material which were given to the University of Idaho Library consist exclusively of water resource material. When the Idaho Water Resource Board was created on July 16, 1965, John Fridolin Streiff was among the original eight members. His file of the minutes of this organization extends from August 2, 1965 to December 9, 1977. The folders include not only the official minutes of the meetings, but copies of correspondence and reports, copies of newspaper clippings, reprints of articles and occasionally minutes of related meetings.

There are folders dealing with the American Falls Dam, Bear River development, Blackfoot Reservoir, Boise Project, Lower Granite Dam, Lucky Peak, Malad Canyon, Middle Snake development, Swan Falls, the State Water Plan, Desert Entry hearings, Port Law and material on the Wild and Scenic Rivers legislation.

The final box contains miscellaneous publications which do not relate to a specific series.

The contents of each folder are described in the following Description of Series.