| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
work science (work studies) harvesting of wood logging and transport forest engineering descriptions of individual logging operations |
| Location: | Alaska; Revillagigedo Island; Traitors Cove; Virgin Bay |
| Description: | Looking into Virgin Bay from Traitors Cove. Note limits of 1925 cutting. |
| Date: | 7/11/1957 |
| 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 |
| 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 |