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

*To download images in addition to list, filter to 100 images or fewer.
Displaying items 1 - 10 of 48
10 | 20 | 50 per page
Spruce sapling next to a range pole in a stand regenerated with uniform shelterwood, in MU23 in March 1981
more info/bigger image
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

"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

Regeneration plots (DI, DJ), looking west from plot center, in MU33 in June 1979
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU33
shelterwood system
regeneration
personnel
plot
Organisms: spruce
Location: Penobscot Experimental Forest; Maine
Description: Regeneration plots (DI, DJ), looking west from plot center, in MU33 in June 1979
Date: Jun-79

Regeneration three years after final overstory removal in uniform shelterwood, in MU23 in 1975
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU23
Compartment Management Study
shelterwood system
regeneration
Organisms: spruce
balsam fir
eastern white pine
red maple
Location: Penobscot Experimental Forest; Maine
Description: Regeneration three years after final overstory removal in uniform shelterwood, in MU23 in 1975
Date: 1975

Regeneration three years after final overstory removal in uniform shelterwood, person with snow machine, in MU23 in 1975
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU23
Compartment Management Study
shelterwood system
equipment
regeneration
personnel
Organisms: spruce
balsam fir
eastern white pine
Location: Penobscot Experimental Forest; Maine
Description: Regeneration three years after final overstory removal in uniform shelterwood, person with snow machine, in MU23 in 1975
Date: 1975

Regeneration three years after final overstory removal in uniform shelterwood, snow machine, in MU23 in 1975
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU23
Compartment Management Study
shelterwood system
equipment
regeneration
Organisms: spruce
balsam fir
eastern white pine
red maple
Location: Penobscot Experimental Forest; Maine
Description: Regeneration three years after final overstory removal in uniform shelterwood, snow machine, in MU23 in 1975
Date: 1975

A person standing with regeneration three years after final overstory removal in uniform shelterwood, in MU23 in 1975
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU23
Compartment Management Study
shelterwood system
personnel
regeneration
Organisms: spruce
balsam fir
eastern white pine
red maple
Location: Penobscot Experimental Forest; Maine
Description: A person standing with regeneration three years after final overstory removal in uniform shelterwood, in MU23 in 1975
Date: 1975

Regeneration three years after final overstory removal in uniform shelterwood, person with snow machine, in MU23 in 1975
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU23
Compartment Management Study
shelterwood system
personnel
regeneration
equipment
Organisms: spruce
balsam fir
eastern white pine
red maple
Location: Penobscot Experimental Forest; Maine
Description: Regeneration three years after final overstory removal in uniform shelterwood, person with snow machine, in MU23 in 1975
Date: 1975

Regeneration three years after final overstory removal in uniform shelterwood, in MU23 in 1975
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU23
Compartment Management Study
shelterwood system
regeneration
Organisms: spruce
balsam fir
eastern white pine
Location: Penobscot Experimental Forest; Maine
Description: Regeneration three years after final overstory removal in uniform shelterwood, in MU23 in 1975
Date: 1975

Spruce-fir forest residual stand photo three years post-harvest with significant fir regeneration. Taken facing S55W 1.12 chains due east of stake 72-18. Same view as photo PSEF_MU54_170
more info/bigger image
Collection: Paul Smith Experimental Forest Historical Photo Archive
Keywords: post-harvest
regeneration
Organisms: spruce
fir
Location: Paul Smith Experimental Forest; Compartment 54
Description: Spruce-fir forest residual stand photo three years post-harvest with significant fir regeneration. Taken facing S55W 1.12 chains due east of stake 72-18. Same view as photo PSEF_MU54_170
Date: 11/18/1960