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- Forest fires 51
- Camps 33
- United States. Forest Service 28
- Dwellings 27
- Fire lookout stations 17
- Civilian Conservation Corps (U.S.) 15
- Roads 14
- Fishing 8
- Indigenous peoples 6
- Bridges 4
- Camping 4
- Landslides 4
- Forests and forestry 3
- Communications 2
- Forest products 2
- Rivers 2
- Rivers--Oregon 2
- Archaeological sites 1
- Buildings 1
- Dams 1