Emanuel Fritz and Woodbridge Metcalf were faculty members of the School of Forestry at the University of California, Berkeley, and were collaborators in the development of this collection of approximately 9000 photographs. The collection is a record of forestry, conservation, the lumber industry, and related topics, primarily in Califormia and the Western United States, but including other areas as well. The subject matter comprises logging operations, logging equipment, reforestation, forest research, fire protection, lumber mills, and the activities of the University of California's School of Forestry. The photographs were taken from 1906 to 1984, with the bulk of the collection dating between 1910 and 1960. The photographs were taken by Emanuel Fritz, Woodbridge Metcalf, and others.