- Forests and forestry -- Northwest, Pacific[remove]42
- United States. Forest Service. Pacific Northwest Region29
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club29
- Forests and forestry -- Research -- Northwest, Pacific7
- Pacific Northwest Forest and Range Experiment Station (Portland, Or.)7
- Forest management2
- Douglas fir -- Northwest, Pacific1
- Forest management -- Environmental aspects -- Northwest, Pacific1
- Forest policy -- Northwest, Pacific1
- Forest products industry -- Northwest, Pacific1
- Forestry law and legislation1
- Forestry research -- Northwest, Pacific1
- Forests and forestry -- Multiple use1
- Habitat (Ecology)1
- Northern spotted owl -- Northwest, Pacific1
- Old growth forests -- Government policy -- Northwest, Pacific1
- Old growth forests -- Northwest, Pacific1
- Spotted owl -- Habitat -- Northwest, Pacific1
- Spotted owl -- Nests -- Northwest, Pacific1
- Starker lectures1