| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
road equipment |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Excavator in use during road construction, picture 1, in June 1950 |
| Date: | Jun-50 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
road equipment |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Bulldozer clearing road in the background, picture 2, in June 1950 |
| Date: | Jun-50 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
road equipment |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Bulldozer driving down recently cleared road, road construction, picture 3, in June 1950 |
| Date: | Jun-50 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
personnel road infrastructure |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Men building bridge at the Penobscot Experimental Forest, picture 4, in June 1950 |
| Date: | Jun-50 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
personnel road infrastructure |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Men building bridge at the Penobscot Experimental Forest, picture 5, in June 1950 |
| Date: | Jun-50 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
road equipment |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Bulldozer driving away from camera down recently cleared road, picture 6, in June 1950. |
| Date: | Jun-50 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU1 Cutting Practice Level Study commercial clearcut |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Poor cutting practice (commercial clearcut) before cutting, in the Cutting Cutting Practice Level Study, in MU1 |
| Date: | 1950s |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU1 Cutting Practice Level Study commercial clearcut |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Poor cutting practice (commercial clearcut) before cutting, in the Cutting Cutting Practice Level Study, in MU1 |
| Date: | 1950s |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU1 Cutting Practice Level Study |
| Organisms: | white spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | 19-inch dbh white spruce in the Cutting Practice Level Study, in MU1 |
| Date: | 1950s |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU26 Compartment Management Study selection system |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | MU 26 in 1950's |
| Date: | 1950s |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU26 Compartment Management Study selection system |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | MU 26 in 1950's |
| Date: | 1950s |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU26 Compartment Management Study selection system |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | MU 26 in 1950's |
| Date: | 1950s |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU26 Compartment Management Study selection system regeneration |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Regeneration, in MU26 |
| Date: | 1950s |
| 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 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
equipment personnel vehicle |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Logging truck in 1950s |
| Date: | 1950s |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
equipment personnel vehicle |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Logging truck in 1950s |
| Date: | 1950s |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
equipment personnel vehicle |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Logging truck in 1950s |
| Date: | 1950s |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
equipment personnel vehicle |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Logging truck in 1950s |
| Date: | 1950s |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
infrastructure vehicle |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | U.S. Forest Service building on the Penobscot Experimental Forest, 1950s |
| Date: | 1950s |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: | logging |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Chemical debarking, bark after removal, in the 1950s (part of a series: PEF_MUUNK_2 through 6) |
| Date: | 1950s |