Subject
- Gifford Pinchot National Forest (Wash.)3
- Fir -- Washington (State) -- Gifford Pinchot National Forest2
- Forest plants -- Oregon2
- Mount Hood National Forest (Or.)2
- Abies grandis1
- Forest ecology -- Oregon1
- Forest ecology -- Oregon -- Mount Hood National Forest1
- Forest ecology -- Washington (State) -- Gifford Pinchot National Forest1
- Forest management -- Oregon1
- Forest management -- Oregon -- Mount Hood National Forest1
- Forest management -- Washington (State)1
- Forest management -- Washington (State) -- Gifford Pinchot National Forest1
- Forest plants -- Oregon -- Mount Hood National Forest1
- Forest plants -- Washington (State) -- Gifford Pinchot National Forest1
- Plant communities -- Washington (State) -- Gifford Pinchot National Forest1
- R6-ECOL-TP1