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Subject
- Civilian Conservation Corps (U.S.)181
- Park buildings63
- Parks63
- Cabins24
- Dwellings23
- Bathhouses20
- Picnic grounds18
- Roads14
- Sewage disposal11
- Dams10
- Water-pipes8
- Landscape architecture--Designs and plans7
- Semi-enclosed spaces (Architecture)7
- Water--Distribution5
- Fish culture4
- Recreation area parking facilities4
- Septic tanks4
- Signs and signboards4
- Beaches3
- Bridges3