Subject
- Forest policy -- Oregon1
- Forests and forestry -- Economic aspects -- Oregon1
- Forests and forestry -- Oregon -- Measurement1
- Joinery1
- Logging -- Environmental aspects1
- Logging -- Government policy -- United States1
- Lumber trade -- Oregon1
- Rivers -- Effect of logging on1
- Strength of materials1
- Water -- Dissolved oxygen1
- Wood -- Corrosion1
- Wood -- Deterioration1
- Wood -- Preservation1
- Wood waste -- Environmental aspects1