Subject
- Abandoned mined lands reclamation -- Social aspects -- Oregon -- Willamette River Valley1
- Aggregate industry -- Environmental aspects -- Oregon -- Willamette River Valley1
- Conflict management -- Oregon -- Illinois River Valley1
- Conservation projects (Natural resources) -- Oregon -- Willamette River Valley -- Citizen participation1
- Conservation projects (Natural resources) -- Oregon -- Willamette River Valley -- Public opinion1
- Conservation projects (Natural resources) -- Oregon -- Wood River Valley -- Public opinion1
- Floodplain management -- Social aspects -- Oregon -- Willamette River Valley1
- Klamath Basin Rangeland Trust1
- Land use, Rural -- Social aspects -- Oregon -- Willamette River Valley1
- Landowners -- Oregon -- Willamette River Valley -- Attitudes1
- Landowners -- Oregon -- Wood River Valley -- Attitudes1
- Natural resources -- Multiple use -- Oregon -- Willamette River Valley1
- Natural resources -- Oregon1
- Natural resources -- Oregon -- Alsea River Valley1
- Natural resources -- Oregon -- Baker Valley1
- Natural resources -- Oregon -- Illinois River Valley -- Management1
- Natural resources -- Oregon -- Illinois River Valley -- Management -- Citizen participation1
- Natural resources -- Oregon -- Illinois River Valley -- Management -- Public opinion1
- Natural resources -- Oregon -- Willamette River Valley -- Management1
- Public opinion -- Oregon -- Willamette River Valley1