![Over-steepened slope caused by bank cutting. Slumping is so active here that the slopes are practically devoid of vegetation. Copper River, above Copper Center. [Date estimated. Year is likely 1950, 1951, or 1957.]](/rds/imagedb/images/_thm/31379.jpg "Over-steepened slope caused by bank cutting. Slumping is so active here that the slopes are practically devoid of vegetation. Copper River, above Copper Center. [Date estimated. Year is likely 1950, 1951, or 1957.]")
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
hydrology water conservation, soil conservation and erosion watershed management studies on stream-flow and bank erosion: |
| Location: | Alaska; Copper River |
| Description: | Over-steepened slope caused by bank cutting. Slumping is so active here that the slopes are practically devoid of vegetation. Copper River, above Copper Center. [Date estimated. Year is likely 1950, 1951, or 1957.] |
| Date: | 1950s |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
plant ecology vegetation types ecotypes |
| Location: | Alaska; Copper River |
| Description: | View of the Copper River Valley, showing a mosaic of forest types, white spruce, quaking aspen, and willow. This pattern reflects the complex fire history of the area. Used as illustration, Fig. 2, Pg. 5 USDA Tech. Bull. 1133 March, 1956. |
| Date: | 1951 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
plant ecology vegetation types, ecotypes |
| Location: | Alaska; Copper River |
| Description: | White spruce, paper birch, and quaking aspen in the foreground; pure white spruce stands in the background. Well-drained alluvium along the larger rivers represents excellent forest land. Looking westerly across the Copper River Valley, about two miles ups... |
| Date: | 1951 |