Collection consists of 23 color slides depicting the burning of the Forestry Building at NW 28th and Upshur St. in Portland, Oregon, on August 17, 1964. The building, designed by architect Ion Lewis, was constructed for the Lewis and Clark Exposition in 1905. It was described as the world's largest log cabin or the Timber Temple.

Papers of C. Paul Keyser (1878-1976), including materials relating to the establishment of Forest Park in Portland, Oregon, and histories of the Portland park system. Keyser served as superintendent of Portland Parks from 1917 to 1949, and during his tenure drastically increased the amount of park land in Portland, including the establishment of Forest Park.

Collection consists of 1 drawing on 1 sheet of the Forestry Building for the 1905 Lewis and Clark Centennial Exposition in Portland, Oregon. The building was described as the world's largest log cabin or the Timber Temple. It was constructed of unhewn logs, the largest of which were 54 feet long and five feet wide, and inside were exhibits of wildlife dioramas and Oregon forest products.

Four black and white photographs depicting downtown Portland, Oregon, the Forestry Building, and Multnomah Falls.