Photos from the WFIWC Archives:
Personnel

Paul Keen developed a widely acclaimed tree classification by which susceptible pine trees could be logged selectively to prevent loss by bark beetles. The classification was derived from pine stands east of the Sierra-Cascade mountains from California to Washington. Walter Buckhorn acquired much of the field data used by Keen. Weyerhaeuser Company paid tribute to Keen's achievement by commissioning this painting by Stan Galli that appeared in national magazines. Note details such as the western pine beetle galleries, dark areas on sapwood caused by blue stain fungus, and the woodpecker work on outer bark. (Furniss 2000, Fig. 6).

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