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USFS Logo Research Data Archive
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A windswept south slope @10,000 ft on which only limber pine and bristle cone pine can withstand the trying winter conditions
more info/bigger image
Collection: Fort Valley Experimental Forest historical photographs
Keywords: San Francisco Peaks
Organisms: limber pine
bristle cone pine
aspen
Location: Coconino National Forest; AZ; USA
Description: A windswept south slope @10,000 ft on which only limber pine and bristle cone pine can withstand the trying winter conditions
Date: 1928

Timber line on San Francisco Peaks
more info/bigger image
Collection: Fort Valley Experimental Forest historical photographs
Keywords: San Francisco Peaks
forest stand
Organisms: bristle cone pine
Location: Coconino National Forest; AZ; USA
Description: Timber line on San Francisco Peaks
Date: 06/1919