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Subject
- Civilian Conservation Corps (U.S.)[remove]71
- Recreation areas[remove]71
- Dams22
- Parks16
- Real property--Maps9
- Bathhouses7
- Water--Distribution3
- Camp sites, facilities, etc2
- Lakes2
- Roads2
- Sewage disposal2
- Diving boards1
- Forest fires--Prevention and control1
- Swimming1
- Vegetation mapping1