| 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 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU7 Farm Woodlot Study selection system damage photo point |
| Organisms: | balsam fir |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | 5-7 inch dbh balsam fir, trees rotted at butts weakened so that they were easily broken off by wind, photo point #6 (looking north 25 degrees east) in MU7 on August 14 1952 |
| Date: | 8/14/1952 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU2 Farm Woodlot Study selection system damage marking |
| Organisms: | balsam fir |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Two balsam fir marked for cutting due to "fir bark disease," in MU2 on March 28 1951 |
| Date: | 3/28/1951 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU3 Compartment Management Study selection system damage marking |
| Organisms: | balsam fir |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Pre-cut stand with patch of trees blown down in December 1950, balsam fir marked, in MU3, about 1950 |
| Date: | 1950s |