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- Forests and forestry 28
- Mountains--Oregon 21
- Lakes--Oregon 6
- Rivers--Oregon 4
- African Americans 3
- Hood, Mount (Or.) 3
- Trees 3
- Urban League of Portland (Portland, Or.) 3
- Landscapes 2
- Roads 2
- Youth 2
- Mountains 1
- Sleds 1
- Snow 1
- Trees in winter 1