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- Mountains--Oregon 252
- Lakes--Oregon 66
- Forests and forestry 63
- Roads 21
- Rivers--Oregon 15
- Agriculture 13
- Trees 11
- Hood, Mount (Or.) 10
- Landscapes 10
- Fishing 7
- Formations (Geology) 7
- Mountaineering 7
- Lakes 6
- Coasts--Oregon 5
- Horses 5
- Orchards 5
- Rocks 5
- Corvallis (Or.) 4
- Glaciers 4
- Mountaineers 4