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 - 10 of 47
10 | 20 | 50 per page
21- year old blaze made by R.F. Taylor in 1929. Shown opened on neg. no. 383. 26" spruce.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
tending of stands and trees
thinnings
Location: Alaska
Description: 21- year old blaze made by R.F. Taylor in 1929. Shown opened on neg. no. 383. 26" spruce.
Date: 8/1950

21- year old blaze on western hemlock 11" dbh. Plot 1, area 1, Karta Bay.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
tending of stands and trees
thinnings
Location: Alaska; Prince of Wales Island; Karta Bay
Description: 21- year old blaze on western hemlock 11" dbh. Plot 1, area 1, Karta Bay.
Date: 8/1950

30-inch cull spruce girdled on plot 3, area 1. (J. Klein) Karta Bay.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
tending of stands and trees
thinnings
Location: Alaska; Prince of Wales Island; Karta Bay
Description: 30-inch cull spruce girdled on plot 3, area 1. (J. Klein) Karta Bay.
Date: 8/1950

Chain saw used by J. Klein in thinning work, Karta Bay.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
tending of stands and trees
thinnings
Location: Alaska; Prince of Wales Island; Karta Bay
Description: Chain saw used by J. Klein in thinning work, Karta Bay.
Date: 8/1950

Corner post plot 1, area 2 corner 4. Stake is still standing but shows deterioration, espl at ground line. Karta Bay.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
tending of stands and trees
thinnings
Location: Alaska; Prince of Wales Island; Karta Bay
Description: Corner post plot 1, area 2 corner 4. Stake is still standing but shows deterioration, espl at ground line. Karta Bay.
Date: 8/1950

Crown before thinning plot 1, area 1, Karta Bay. See neg. no. 376 for view after thinning. This is same camera point as neg. 357.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
tending of stands and trees
thinnings
Location: Alaska; Prince of Wales Island; Karta Bay
Description: Crown before thinning plot 1, area 1, Karta Bay. See neg. no. 376 for view after thinning. This is same camera point as neg. 357.
Date: 8/1950

Crown before thinning plot 1, area 1. Crown competition had reduced crown ratio below optimum. Karta Bay. Same camera point as neg. no. 355.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
tending of stands and trees
thinnings
Location: Alaska; Prince of Wales Island; Karta Bay
Description: Crown before thinning plot 1, area 1. Crown competition had reduced crown ratio below optimum. Karta Bay. Same camera point as neg. no. 355.
Date: 8/1950

Crown condition plot 2, area 1. Same camera point as neg. 369.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
tending of stands and trees
thinnings
Location: Alaska; Prince of Wales Island; Karta Bay
Description: Crown condition plot 2, area 1. Same camera point as neg. 369.
Date: 8/1950

Crown density after thinning plot 1, area 1, Karta Bay. Same camera point as 377. See neg. 358 for crown view before thinning.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
tending of stands and trees
thinnings
Location: Alaska; Prince of Wales Island; Karta Bay
Description: Crown density after thinning plot 1, area 1, Karta Bay. Same camera point as 377. See neg. 358 for crown view before thinning.
Date: 8/1950

Crown density after thinning plot 1, area 1, to 120 trees per acre. Same camera point as neg. no. 379. About 1/2 of the stems were removed. See neg. 356.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
tending of stands and trees
thinnings
Location: Alaska; Prince of Wales Island; Karta Bay
Description: Crown density after thinning plot 1, area 1, to 120 trees per acre. Same camera point as neg. no. 379. About 1/2 of the stems were removed. See neg. 356.
Date: 8/1950