Also known as Oregon Pine, Douglas Spruce, Yellow Fir and Red Fir. One of America's most important timber trees. Its natural range extends from British Columbia south through the coast regions, Sierra Nevadas and Rockies to Mexico, attaining its best development in B.C., Washington and Oregon. Maximum size 10' x 350', averages 3-4' x 180'. Wood is hard, strong and straignt-grained and seasons well. Used for piles, poles, props, masts, car construction, interior finish, tanks, pipes, etc. Unsurpassed for structural timber. It is also used for plywood and paper.

Locations: (explanation)

• 131-3: This specimen came from the forests of the Sierra Nevada Mountains. In this region Douglas-fir is mixed with sugar pine, ponderosa pine, white fir and incense-cedar, and does not grow to such great dimensions as it reaches in the dense Douglas-fir forests of western Oregon and Washington. The Sierra type of Douglas-fir averages 4-6' x 180-250'. Gift of Red River Lumber Co., Westwood, Calif.
  
• 163-3: This board is 1" x 30" x 12', 39 board feet. Gift of Weyerhaeuser Timber Co., Everett, Wash