Subject
- Douglas fir -- Diseases and pests -- Idaho -- Idaho Panhandle National Forests Region1
- Douglas fir beetle -- Idaho -- Idaho Panhandle National Forests Region1
- Fishing -- Oregon1
- Flood forecasting -- Northwest, Pacific1
- Floods -- Northwest, Pacific1
- Herbicides -- Application -- Northwest, Pacific1
- Hunting -- Oregon1
- Plant-snow relationships -- Northwest, Pacific1
- Reforestation -- Northwest, Pacific1
- Snow -- Northwest, Pacific -- Measurement1
- Weeds -- Control -- Northwest, Pacific1
- Wildlife management -- Oregon1