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Subject
- Swamps[remove]1,382
- Important bird areas1,367
- Wilderness areas1,367
- Congaree National Park (S.C.)1,309
- Old growth forests1,309
- Trees904
- Boardwalks90
- Butterfly gardens85
- City Year (Service corps)85
- Construction85
- Park rangers83
- Biosphere reserves58
- Aerial surveys54
- Plants47
- Aerial views44
- Footbridges33
- Congaree River (S.C.)11
- Abandoned houses9
- Plantations--South Carolina8
- Enslaved persons7