Browse Items (4334 total)
- Collection: Ken Armson fonds
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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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Crown of 250-year ponderosa pine. Coconino National Forest.
Crown of 250-year ponderosa pine. 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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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 deformed by mistletoe in ponderosa pine 250years.
Crown deformed by mistletoe in ponderosa pine 250years. Cocinino National Forest. Flagstaff, Arizona.
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Recent windthrow in ponderosa pine
Recent windthrow in ponderosa pine, Coconino National Forest. Flagstaff Arizona
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Old windthrow in ponderosa pine.
Old windthrow in ponderosa pine. Coconino National Forest. Flagstaff, Arizona
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Ponderosa pine thinned from 20 sq.ft./Acre to 0.
Ponderosa pine thinned from 20 sq.ft./Acre to 0. Fort valley Ext StaFlagstaff Arizona
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Ponderosa pine thinned to 40 sq.ft/acre.
Ponderosa pine thinned to 40 sq.ft/acre. Coconino national Forest. Flagstaff Arizona
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Ponderosa pine thinned to 40 sq.ft/acre.
Ponderosa pine thinned to 40 sq.ft/acre. Coconino National Forest. Flagstaff Arizona
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