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 - 2 of 2
10 | 20 | 50 per page
Note active sluffing of dissected slope at right-center occurring as a result of soft shale bedrock overlain by granite cliffs (discernable at top of photo).
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: hydrology
water conservation, soil conservation and erosion
watershed management
studies of infiltration, run-off and water erosion:effects of forestry practices (polluted water)
Location: Alaska; Revillagigedo Island; Traitors Cove
Description: Note active sluffing of dissected slope at right-center occurring as a result of soft shale bedrock overlain by granite cliffs (discernable at top of photo).
Date: 7/11/1957

Closeup of actively eroding surface. Mat of soil holding stumps & roots has given way on steep unstable slope. Note debris choked water course. No evidence that this material was washing down slope.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: hydrology
water conservation, soil conservation and erosion
watershed management
studies of infiltration, run-off and water erosion:effects of forestry practices (polluted water)
Location: Alaska; Revillagigedo Island; Traitors Cove
Description: Closeup of actively eroding surface. Mat of soil holding stumps & roots has given way on steep unstable slope. Note debris choked water course. No evidence that this material was washing down slope.
Date: 7/11/1957