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Subject
- Athletic fields2
- Bathhouses11
- Cabins1
- Camp sites, facilities, etc60
- Campfires1
- Civilian Conservation Corps (U.S.)145
- Community kitchens1
- Dams24
- Day camps1
- Diving boards1
- Electric lines3
- Forest fires--Prevention and control1
- Gates2
- Groundwater1
- Hiking373
- Hospitals3
- Landscape architecture--Designs and plans5
- Memorandums1
- Monuments6
- Outdoor recreation48