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USFS Logo Research Data Archive
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Displaying items 1 - 20 of 33
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Management unit sign and stand data - unthinned uniform shelterwood stand in MU23 on March 29 1982
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU23
Compartment Management Study
shelterwood system
sign
Location: Penobscot Experimental Forest; Maine
Description: Management unit sign and stand data - unthinned uniform shelterwood stand in MU23 on March 29 1982
Date: 3/29/1982

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
more info/bigger image
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

"Row Spacing Only, Unfertilized" sign, 5.5 growing seasons after precommercial thinning in plot 21, in Study 58 on March 29 1982
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: Study 58
thinning
sign
plot
Location: Penobscot Experimental Forest; Maine
Description: "Row Spacing Only, Unfertilized" sign, 5.5 growing seasons after precommercial thinning in plot 21, in Study 58 on March 29 1982
Date: 3/29/1982

"Row Spacing Only, Unfertilized" sign, 5.5 growing seasons after precommercial thinning in plot 23, in Study 58 on March 29 1982
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU58
thinning
sign
plot
Location: Penobscot Experimental Forest; Maine
Description: "Row Spacing Only, Unfertilized" sign, 5.5 growing seasons after precommercial thinning in plot 23, in Study 58 on March 29 1982
Date: 3/29/1982

Eastern white pine provenance test, sign with information, in EP1 in the 1980s
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: EP1
White Pine Provenance Study
planting
regeneration
sign
Organisms: eastern white pine
Location: Penobscot Experimental Forest; Maine
Description: Eastern white pine provenance test, sign with information, in EP1 in the 1980s
Date: 1980s

Sign for MU23 showing years of harvest entries, photo taken in 1980s
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU23
Compartment Management Study
shelterwood system
sign
Location: Penobscot Experimental Forest; Maine
Description: Sign for MU23 showing years of harvest entries, photo taken in 1980s
Date: 1980s

"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

People unloading a vehicle in a spruce stand in Study 58 in the 1980s
more info/bigger image
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

Wooden sign (Management Intensity Demonstration Plots established 1950), in the Cutting Practice Level Study in September, 1974
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: Cutting Practice Level Study
sign
Location: Penobscot Experimental Forest; Maine
Description: Wooden sign (Management Intensity Demonstration Plots established 1950), in the Cutting Practice Level Study in September, 1974
Date: Sep-74

Board displaying the strip width - slash disposal treatment layout of an experiment, in the Biomass Harvesting Study
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU33
Biomass Harvesting Study
strip clearcut
sign
map
Location: Penobscot Experimental Forest; Maine
Description: Board displaying the strip width - slash disposal treatment layout of an experiment, in the Biomass Harvesting Study
Date: 1960s

Results after two growing seasons of strip clearcutting with and without slash removal, in MU33 in 1960s
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU33
Biomass Harvesting Study
site preparation
sign
strip clearcut
study results
Location: Penobscot Experimental Forest; Maine
Description: Results after two growing seasons of strip clearcutting with and without slash removal, in MU33 in 1960s
Date: 1960s

Strip width - slash disposal cutting experiment sign in MU33 in the 1960's
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU33
Biomass Harvesting Study
strip clearcut
sign
Location: Penobscot Experimental Forest; Maine
Description: Strip width - slash disposal cutting experiment sign in MU33 in the 1960's
Date: 1960s

Entrance sign in 1956
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: sign
vehicle
personnel
Location: Penobscot Experimental Forest; Maine
Description: Entrance sign in 1956
Date: 1956

Main Penobscot Experimental Forest access road and entrance sign, winter of 1951
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: road
sign
Location: Penobscot Experimental Forest; Maine
Description: Main Penobscot Experimental Forest access road and entrance sign, winter of 1951
Date: Winter 1951

A vehicle driving into the Penobscot Experimental Forest, with the entrance sign visible
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: vehicle
road
sign
Location: Penobscot Experimental Forest; Maine
Description: A vehicle driving into the Penobscot Experimental Forest, with the entrance sign visible
Date: 1950s

"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: