| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU2 Logging Study shelterwood system equipment logging road |
| Organisms: |
balsam fir spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Equipment used for cutting conifers along the road in the Logging Study, in MU2 in 1984 |
| Date: | 1984 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU8 Compartment Management Study commercial clearcut |
| Organisms: |
spruce balsam Fir |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Stand before second commercial clearcut, in MU8 in 1983 |
| Date: | 1983 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU23 Compartment Management Study shelterwood system thinning release |
| Organisms: | spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Completed spacing favoring spruce, uniform shelterwood stand, in MU23 on March 29 1982 |
| Date: | 3/29/1982 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU23 Compartment Management Study shelterwood system personnel thinning release |
| Organisms: | spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Completed uniform shelterwood spacing job favoring spruce with a few hardwoods in MU23 on March 29 1982 |
| Date: | 3/29/1982 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU23 Compartment Management Study shelterwood system thinning |
| Organisms: |
spruce balsam fir |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Two-meter-wide corridor-only spacing (row thinning) in an uniform shelterwood stand on a somewhat poorly to poorly drained site, in MU23 on March 29 1982 |
| Date: | 3/29/1982 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU23 Compartment Management Study shelterwood system thinning sign |
| Organisms: | spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Management unit sign, unspaced trees behind and trees spaced 2-by-3-meters across the road on the right, in MU23 on March 29 1982 |
| Date: | 3/29/1982 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU23 Compartment Management Study shelterwood system regeneration |
| Organisms: | spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Spruce sapling next to a range pole in a stand regenerated with uniform shelterwood, in MU23 in March 1981 |
| Date: | Mar-81 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
Study 58 thinning regeneration sign |
| Organisms: | spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | "Early Release and Fertilization Study in Spruce-Fir" sign and spruce saplings in Study 58 in the 1980s |
| Date: | 1980s |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
Study 58 thinning personnel vehicle sign |
| Organisms: | spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | People unloading a vehicle in a spruce stand in Study 58 in the 1980s |
| Date: | 1980s |
| 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 |