- Bark beetles -- Northwest, Pacific1
- Douglas fir -- Pacific Coast (U.S.)1
- Ecological disturbances -- Northwest, Pacific -- Remote sensing1
- Forest management -- Northwest, Pacific1
- Forest nurseries -- Pacific Coast (U.S.) -- Costs1
- Forests and forestry -- Northwest, Pacific1
- Insect pests -- Pacific States1
- Lodgepole pine -- Northwest, Pacific -- Geographical distribution1
- Lodgepole pine -- Soils -- Northwest, Pacific1
- Mountain pine beetle -- Northwest, Pacific -- Geographical distribution1
- Mountain pine beetle -- Northwest, Pacific -- Remote sensing1
- Ponderosa pine -- Diseases and pests -- Control -- Northwest, Pacific1
- Ponderosa pine -- Diseases and pests -- Northwest, Pacific1
- Ponderosa pine -- Diseases and pests -- Pacific States1
- Ponderosa pine -- Northwest, Pacific1
- Ponderosa pine -- Northwest, Pacific -- Geographical distribution1
- Ponderosa pine -- Pacific Coast (U.S.)1
- Ponderosa pine -- Soils -- Northwest, Pacific1
- Ponderosa pine -- Thinning -- Northwest, Pacific1
- Soil moisture1