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Crown deformed by mistletoe in ponderosa pine 250years.
Crown deformed by mistletoe in ponderosa pine 250years. Cocinino National Forest. Flagstaff, Arizona.
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Ponderosa pine 250 years showing ranges on health evidenced by crowns -vigorous to debility. Coconino National Forest.
Ponderosa pine 250 years showing ranges on health evidenced by crowns -vigorous to debility. Coconino National Forest. Flagstaff, Arizona
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Ponderosa pine 250 years showing ranges on health evidenced by crowns -vigorous to debility. Coconino National Forest.
Ponderosa pine 250 years showing ranges on health evidenced by crowns -vigorous to debility. Coconino National Forest. Flagstaff, Arizona
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Crown of 250-year ponderosa pine. Coconino National Forest.
Crown of 250-year ponderosa pine. Coconino National Forest. Flagstaff, Arizona.
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View across San Juan valley, logged 1940's mainly for Sitka spruce.
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
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Crowns of 250 years ponderosa pine. Coconino National Forest.
Crown of 250 years. ponderosa pine. Coconino National Forest. Flagstaff, Arizona
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Natural regeneration(54 years old) with 250 years stand. Coconino National Forest.
Natural regeneration( 54 years old) with 250 years stand. Coconino National Forest. Flagstaff, Arizona
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Ponderosa pine 250 years, Coconino National Forest.
Ponderosa pine 250 years, Coconino National Forest. Flagstaff, Arizona.
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Fort valley research station United States Forest Service. First research station of United States Forest Service.
Fort valley research station United States Forest Service. First research station of United States Forest Service. Flagstaff Arizona
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Clearcut with buffer strips. N.B. windthrow in buffers.
Clearcut with buffer strips. N.B. windthrow in buffers. British Columbia Forest Products Port Renfrew
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