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- Mountains--Oregon 358
- Lakes--Oregon 90
- Forests and forestry 79
- Rivers--Oregon 30
- Roads 22
- Mountaineering 21
- Agriculture 17
- Portraits, Group 14
- Glaciers 10
- Fishing 9
- Formations (Geology) 8
- Coasts--Oregon 6
- Orchards 6
- Skis and skiing 6
- Automobiles 5
- Cities and towns 5
- Forest fires--Prevention and control 5
- Glacial crevasses 5
- Horses 5
- Mountaineers 5
