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- Civilian Conservation Corps (U.S.) 174
- Camps 52
- Forests and forestry 41
- Portraits, Group 23
- Barracks 15
- United States. Forest Service 14
- Roads--Design and construction 11
- Forest fires--Prevention and control 10
- Parks 6
- Telephone lines 6
- Trucks 6
- Gates 5
- Kitchens 4
- Arboretums 3
- Axes 3
- Bridges 3
- Coasts--Oregon 3
- Footbridges 3
- Logging 3
- Picnic grounds 3