| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
forest products and their utilization "grading" of wood and wood products detection, recognition and assessment of injuries and defects |
| Location: | Alaska; Juneau; Switzer Creek |
| Description: | Black knots, western hemlock. Switzer Creek reservoir, Juneau. |
| Date: | 9/1975 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
forest products and their utilization "grading" of wood and wood products detection, recognition and assessment of injuries and defects |
| Location: | Alaska; Juneau; Switzer Creek |
| Description: | Conks on a dead hemlock near Switzer Village, Juneau. |
| Date: | 9/1975 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
forest products and their utilization "grading" of wood and wood products detection, recognition and assessment of injuries and defects |
| Location: | Alaska; Juneau; Switzer Creek |
| Description: | Conks on a dead hemlock near Switzer Village, Juneau. |
| Date: | 9/1975 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
forest products and their utilization "grading" of wood and wood products detection, recognition and assessment of injuries and defects |
| Location: | Alaska; Juneau; Switzer Creek |
| Description: | Conks on hemlock near Switzer Creek, Juneau. Tree is dead. |
| Date: | 9/1975 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
forest products and their utilization "grading" of wood and wood products detection, recognition and assessment of injuries and defects |
| Location: | Alaska; Juneau; Switzer Creek |
| Description: | Dead top in western hemlock, Switzer Village, near Juneau. |
| Date: | 9/1975 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
forest products and their utilization "grading" of wood and wood products detection, recognition and assessment of injuries and defects |
| Location: | Alaska; Juneau; Switzer Creek |
| Description: | Forked hemlock. Also frost crack. New Switzer Creek reservoir. Juneau. |
| Date: | 9/1975 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
forest products and their utilization "grading" of wood and wood products detection, recognition and assessment of injuries and defects |
| Location: | Alaska; Juneau; Switzer Creek |
| Description: | Forked top in the merchantable bole. On east side of reservoir, Switzer Village near Juneau. |
| Date: | 9/1975 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
forest products and their utilization "grading" of wood and wood products detection, recognition and assessment of injuries and defects |
| Location: | Alaska; Juneau; Switzer Creek |
| Description: | Frost crack in hemlock, Switzer Cr., Juneau. |
| Date: | 9/1975 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
silvicultural systems constitution and composition of stands forms of stand virgin stands |
| Location: | Alaska; Juneau; Switzer Creek |
| Description: | Natural old-growth stand near Switzer Village, Juneau. |
| Date: | 9/1975 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
silvicultural systems constitution and composition of stands forms of stand natural stands |
| Location: | Alaska; Juneau; Switzer Creek |
| Description: | Old growth hemlock-spruce near Switzer Creek, Juneau. |
| Date: | 9/1975 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
forest products and their utilization "grading" of wood and wood products detection, recognition and assessment of injuries and defects |
| Location: | Alaska; Juneau; Switzer Creek |
| Description: | Trunk scar on western hemlock, Switzer Creek, Juneau. |
| Date: | 9/1975 |