| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU91 Cutting Practice Level Study selection system marking release |
| Organisms: | spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Marking to remove competition and release spruce in a selection cut, in MU91 in October 1979 |
| Date: | Oct-79 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU7 Farm Woodlot Study selection system pruning release |
| Organisms: |
red spruce red maple |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | 7-inch dbh red spruce pruned and released by cutting 14-inch dbh red maple, in MU7 on July 27, 1954 |
| Date: | 7/27/1954 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU2 Farm Woodlot Study selection system marking release photo point |
| Organisms: |
aspen balsam fir spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Aspen marked for cutting to release balsam fir and spruce, photo point #4 in MU2 on July 16 1954 |
| Date: | 7/16/1954 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU7 Farm Woodlot Study selection system timber stand improvement release photo point |
| Organisms: |
eastern hemlock maple |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Chance for timber stand improvement by removing cull 14-inch dbh maple to release 3-inch dbh eastern hemlock, photo point #5 (looking north 50 degrees east) in MU7 on August 14 1952 |
| Date: | 8/14/1952 |