Tree ring sequence of a bigcone Douglas-fir on the Kenyon DeVore Trail, near Mt. Wilson. This
alt="Tree ring sequence of a bigcone Douglas-fir on the Kenyon DeVore Trail, near Mt. Wilson. This approximately 300 yr. old tree reached nearly 20% of its eventual diameter in only 20 years, and nearly half in 80 years." border="0">
Tree ring sequence of a bigcone Douglas-fir on the Kenyon DeVore Trail, near Mt. Wilson. This approximately 300 yr. old tree reached nearly 20% of its eventual diameter in only 20 years, and nearly half in 80 years.