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 - 20 of 27
10 | 20 | 50 per page
Clearcut - Thorne Bay - overlooking Clarence Strait - Ferry in background.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
natural regeneration
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: Clearcut - Thorne Bay - overlooking Clarence Strait - Ferry in background.
Date: 1974

Clearcut - Thorne Bay Clarence Strait - Ferry in background.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
natural regeneration
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: Clearcut - Thorne Bay Clarence Strait - Ferry in background.
Date: 1974

Clearcut - Thorne Bay Panorama 1 of 2.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
natural regeneration
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: Clearcut - Thorne Bay Panorama 1 of 2.
Date: 1974

Clearcut - Thorne Bay Panorama 2 of 2.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
natural regeneration
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: Clearcut - Thorne Bay Panorama 2 of 2.
Date: 1974

Clearcut - Thorne Bay.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
natural regeneration
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: Clearcut - Thorne Bay.
Date: 1974

Clearcut - Thorne Bay.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
natural regeneration
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: Clearcut - Thorne Bay.
Date: 1974

Thorne Bay. Lodgepole pine of good form.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: plant ecology
ecosystems
vegetation types
ecotypes
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: Thorne Bay. Lodgepole pine of good form.
Date: 1965

Weighing logs with a Martin-Decker 25,000 pound capacity scale in area 01B (Thorne Bay).
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: measurements of the stem dimensions and volume of trees, stands, forests and timber
large-scale (regional) "forest surveys" (general descriptions and methods
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: Weighing logs with a Martin-Decker 25,000 pound capacity scale in area 01B (Thorne Bay).
Date: 7/20/1963

A "loader crew" setting tongs in the butt log of tree number 27, a 64 inch dbh Sitka spruce (Thorne Bay).
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: measurements of the stem dimensions and volume of trees, stands, forests and timber
log measurement
"scaling"
measurement by weight
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: A "loader crew" setting tongs in the butt log of tree number 27, a 64 inch dbh Sitka spruce (Thorne Bay).
Date: 7/20/1963

A "yarder crewman" hangs on to the delicate gauge and rides a weighed log to a new decking area. This safety hazard was later corrected when a rope was used to support the gauge.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: measurements of the stem dimensions and volume of trees, stands, forests and timber
log measurement
"scaling"
measurement by weight
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: A "yarder crewman" hangs on to the delicate gauge and rides a weighed log to a new decking area. This safety hazard was later corrected when a rope was used to support the gauge.
Date: 7/20/1963

A closeup of the Ohaus balance used to weigh wedges (Thorne Bay).
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: measurements of the stem dimensions and volume of trees, stands, forests and timber
log measurement
"scaling"
measurement by weight
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: A closeup of the Ohaus balance used to weigh wedges (Thorne Bay).
Date: 7/20/1963

A water container designed for the project by forest survey is being used to determine the volume of a wedge (Thorne Bay).
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: measurements of the stem dimensions and volume of trees, stands, forests and timber
log measurement
"scaling"
measurement by weight
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: A water container designed for the project by forest survey is being used to determine the volume of a wedge (Thorne Bay).
Date: 7/20/1963

Each wedge is weighed and then immersed in a container of water to determine volume. Measurements are made with and without bark (Thorne Bay).
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: measurements of the stem dimensions and volume of trees, stands, forests and timber
log measurement
"scaling"
measurement by weight
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: Each wedge is weighed and then immersed in a container of water to determine volume. Measurements are made with and without bark (Thorne Bay).
Date: 7/20/1963

Free lifting the butt log of tree 27 (Thorne Bay).
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: measurements of the stem dimensions and volume of trees, stands, forests and timber
log measurement
"scaling"
measurement by weight
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: Free lifting the butt log of tree 27 (Thorne Bay).
Date: 7/20/1963

Preparing to unload a load of logs at Thorne Bay.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: measurements of the stem dimensions and volume of trees, stands, forests and timber
log measurement
"scaling"
measurement by weight
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: Preparing to unload a load of logs at Thorne Bay.
Date: 7/20/1963

Reading the Martin-Decker gauge to the nearest 10-pounds. The butt log of tree 27 pictured here weighed 13,670 pounds (Thorne Bay).
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: measurements of the stem dimensions and volume of trees, stands, forests and timber
log measurement
"scaling"
measurement by weight
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: Reading the Martin-Decker gauge to the nearest 10-pounds. The butt log of tree 27 pictured here weighed 13,670 pounds (Thorne Bay).
Date: 7/20/1963

Recording the weight of a 24-foot hemlock log (Thorne Bay).
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: measurements of the stem dimensions and volume of trees, stands, forests and timber
log measurement
"scaling"
measurement by weight
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: Recording the weight of a 24-foot hemlock log (Thorne Bay).
Date: 7/20/1963

Remarking logs in a log deck in area 01B and checking to see that all logs have been yarded (Thorne Bay).
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: measurements of the stem dimensions and volume of trees, stands, forests and timber
log measurement
"scaling"
measurement by weight
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: Remarking logs in a log deck in area 01B and checking to see that all logs have been yarded (Thorne Bay).
Date: 7/20/1963

Sections are cut and labeled from trees in the range of diameters (Thorne Bay).
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: measurements of the stem dimensions and volume of trees, stands, forests and timber
log measurement
"scaling"
measurement by weight
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: Sections are cut and labeled from trees in the range of diameters (Thorne Bay).
Date: 7/20/1963

Setting the tongs in a small hemlock log (Thorne Bay).
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: measurements of the stem dimensions and volume of trees, stands, forests and timber
log measurement
"scaling"
measurement by weight
Location: Alaska; Prince of Wales Island; Thorne Bay
Description: Setting the tongs in a small hemlock log (Thorne Bay).
Date: 7/20/1963