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- Forests and forestry 25
- Lumber trade 11
- Forest fires--Prevention and control 9
- Mountains--Oregon 7
- Sawmills 5
- Lakes--Oregon 4
- Forest fires 3
- Forest rangers 3
- Logging 3
- Agriculture 2
- Airplanes 2
- Coasts--Oregon 2
- Fire lookout stations 2
- Helicopters 2
- Log transportation 2
- Logging trucks 2
- Ponderosa pine 2
- Sheep 2
- Bicycles 1
- Boats 1