Subject
- Fisheries -- Oregon246
- Game and game-birds -- Oregon230
- Game protection -- Oregon227
- Wildlife management -- Oregon103
- Fishing -- Oregon86
- Hunting -- Oregon86
- Forests and forestry -- Northwest, Pacific54
- Fish culture -- Oregon38
- Forests and forestry -- Oregon30
- Fishery management -- Oregon -- Statistics28
- Fish-culture -- Oregon -- Statistics27
- Fishing -- Oregon -- Statistics27
- United States. Forest Service. Pacific Northwest Region25
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club25
- Forests and forestry -- Research -- Northwest, Pacific23
- Pacific Northwest Forest and Range Experiment Station (Portland, Or.)23
- Fishes -- Oregon21
- Agricultural pests -- Control -- Congresses19
- Douglas fir19
- Fisheries -- Columbia River -- Periodicals18