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Subject
- Trenches[remove]3
- Fort Moultrie (S.C.)2
- Congaree National Park (S.C.)1
- Conservation and restoration1
- Engineering and construction1
- Historic sites1
- Important bird areas1
- Military weapons1
- Old growth forests1
- Soldiers1
- Trees1
- United States--History--Civil War, 1861-18651
- United States--History--Civil War, 1861-1865--Battlefields1
- Wilderness areas1