| 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: |
personnel vehicle |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | A tour group visiting the Penobscot Experimental Forest posing in front of a bus with U.S. Forest Service personnel at the Administrative site, Robert M. Frank second from right, 1970s or 1980s |
| Date: | 1970s or 1980s |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
vehicle road equipment |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | U.S. Forest Service vehicle on road, chainsaw, 1970s or 1980s |
| Date: | 1970s or 1980s |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
vehicle road personnel |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | University of Maine students from Ralph Griffin's class, PEF tour with U.S. Forest Service staff, 1970s or 1980s |
| Date: | 1970s or 1980s |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
road vehicle infrastructure |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Gate across the road near Blackman Stream, vehicle, 1970s or 1980s |
| Date: | 1970s or 1980s |