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Topic
- Civilian Conservation Corps (U.S.) 22
- Camps 13
- Forests and forestry 13
- Roads--Design and construction 4
- Roads 3
- Forest fires--Prevention and control 2
- Portraits, Group 2
- Telephone lines 2
- Tractors 2
- Barracks 1
- Fire lookout stations 1
- Gates 1
- Laundry 1
- Lighthouses 1
- Logging 1
- Ponderosa pine 1
- Projectors 1
- Ranger stations 1
- Rock-drills 1
- Trucks 1
