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Ponderosa pine 250 years, Coconino National Forest. Flagstaff, Arizona.

Natural regeneration( 54 years old) with 250 years stand. Coconino National Forest. Flagstaff, Arizona

Crown of 250 years. ponderosa pine. Coconino National Forest. Flagstaff, Arizona

View across San Juan valley, logged 1940's mainly for Sitka spruce. N.B. alder on alluvial flats (where the largest Spruce grew. BCFP Port Renfrew

Crown of 250-year ponderosa pine. Coconino National Forest. Flagstaff, Arizona.

Ponderosa pine 250 years showing ranges on health evidenced by crowns -vigorous to debility. Coconino National Forest. Flagstaff, Arizona

Ponderosa pine 250 years showing ranges on health evidenced by crowns -vigorous to debility. Coconino National Forest. Flagstaff, Arizona

Crown deformed by mistletoe in ponderosa pine 250years. Cocinino National Forest. Flagstaff, Arizona.

Recent windthrow in ponderosa pine, Coconino National Forest. Flagstaff Arizona

Old windthrow in ponderosa pine. Coconino National Forest. Flagstaff, Arizona