Jeffrey pines in Oregon are found only in the state's southwest corner, where they are especially adapted to local dry, infertile, serpentine soils in the surrounding flat lands and distant mountains. These trees resist fire kill through adaptations such as thick, insulating bark and open crowns. During construction of the Siskiyou Smokejumper base, this Jeffrey pine was likely spared for use as a telephone pole and shade. Its circumference is 6 feet, its approximate height is 60 feet, its average crown spread is approximately 30 feet, and its age is 150 years.