Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

USFS Logo Research Data Archive
You are here: Home > Search Results


*To download images in addition to list, filter to 100 images or fewer.
Displaying items 1 - 7 of 7
10 | 20 | 50 per page
"Early Release and Fertilization Study in Spruce-Fir" sign and spruce saplings in Study 58 in the 1980s
more info/bigger image
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

"8x8' Spacing, Fertilized" sign in front of spruce saplings in plot 3 in Study 58
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: Study 58
thinning
regeneration
sign
plot
Organisms: spruce
Location: Penobscot Experimental Forest; Maine
Description: "8x8' Spacing, Fertilized" sign in front of spruce saplings in plot 3 in Study 58
Date:

"Row Spacing and Release, Unfertilized" sign and spruce regeneration in plot 51 in Study 58
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: Study 58
thinning
regeneration
sign
plot
Organisms: spruce
Location: Penobscot Experimental Forest; Maine
Description: "Row Spacing and Release, Unfertilized" sign and spruce regeneration in plot 51 in Study 58
Date:

"Early Release and Fertilization Study in Spruce-Fir" sign and spruce regeneration in Study 58
more info/bigger image
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 regeneration in Study 58
Date:

"Row Spacing and Release, Unfertilized" sign and spruce saplings in Study 58
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: Study 58
thinning
regeneration
sign
Organisms: spruce
Location: Penobscot Experimental Forest; Maine
Description: "Row Spacing and Release, Unfertilized" sign and spruce saplings in Study 58
Date:

"8x8' spacing, Fertilized" sign in front of spruce regeneration in Study 58
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: Study 58
thinning
regeneration
sign
Organisms: spruce
Location: Penobscot Experimental Forest; Maine
Description: "8x8' spacing, Fertilized" sign in front of spruce regeneration in Study 58
Date:

"Row spacing Only, Fertilized" sign in front of spruce regeneration in Study 58
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: Study 58
thinning
regeneration
sign
Organisms: spruce
Location: Penobscot Experimental Forest; Maine
Description: "Row spacing Only, Fertilized" sign in front of spruce regeneration in Study 58
Date: