| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU32 reference plot photo point |
| Organisms: |
balsam fir aspen red spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Young balsam fir with a few aspen and red spruce, photo point #1 (8 feet from center of permanent sample plot 1/3) in MU32 on September 27 1955 |
| Date: | 9/27/1955 |
| 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: |
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 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU33 Biomass Harvesting Study strip clearcut personnel road regeneration |
| Organisms: |
red maple eastern white pine aspen |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Robert M. Frank standing on PEF road next to strip clearcut, hardwood regeneration present, in MU33 |
| Date: |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU33 Biomass Harvesting Study strip clearcut personnel regeneration |
| Organisms: | aspen |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Robert M. Frank measuring aspen regeneration in a strip clearcut in MU33 |
| Date: |