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USFS Logo Research Data Archive
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Eastern hemlock tree pruned by porcupines, in MU6 on October 21 1952
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU6
Compartment Management Study
selection system
damage
wildlife
Organisms: eastern hemlock
porcupine
Location: Penobscot Experimental Forest; Maine
Description: Eastern hemlock tree pruned by porcupines, in MU6 on October 21 1952
Date: 10/21/1952

11-inch dbh aspen girdled at base for chemical debarking in MU6 on August 14 1952
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU6
Compartment Management Study
selection system
timber stand improvement
Organisms: aspen
Location: Penobscot Experimental Forest; Maine
Description: 11-inch dbh aspen girdled at base for chemical debarking in MU6 on August 14 1952
Date: 8/14/1952