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- Forests and forestry 1321
- Logging 248
- Trees 236
- Loggers 122
- Timber 122
- Men 118
- Lumber trade 116
- Roads 98
- Mountains--Oregon 90
- Log transportation 85
- Natural resources 76
- Rivers 62
- Rivers--Oregon 60
- Portraits, Group 58
- Lakes--Oregon 46
- Forest fires--Prevention and control 45
- Buildings 42
- Civilian Conservation Corps (U.S.) 41
- Mountains 40
- Landscapes 38