| 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 |
| Description: | Frost crack in western hemlock. Fish Creek Road, Douglas Is. |
| 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; Douglas Island |
| Description: | Frost crack in western hemlock. Fish Creek Road, Douglas Is. |
| 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; Douglas Island |
| Description: | Frost crack in western hemlock. Fish Creek Road, Douglas Is. |
| 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; Douglas Island |
| Description: | Frost crack in western hemlock. Fish Creek Road, Douglas Is. |
| 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; Douglas Island |
| Description: | Frost crack, trunk scar, and mistletoe broom on hemlock. Fish Creek Road 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; Douglas Island |
| Description: | Frost crack, trunk scar, and mistletoe on western hemlock, Fish Creek Road, Douglas Is. |
| 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; Douglas Island |
| Description: | Frost cracks in Sitka spruce. Fish Creek Road, Douglas Is. |
| 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; Douglas Island |
| Description: | Old frost crack in western hemlock, Fish Cr. Road, Douglas Is. |
| 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; Douglas Island |
| Description: | Trunk and butt scar on western hemlock Fish Creek Road, Douglas Is. |
| 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; Douglas Island |
| Description: | Trunk and butt scars and conks on western hemlock Fish Creek Road, Douglas Is. |
| Date: | 9/1975 |