1. Rapidan River, Va.
2. Fair Oaks, Virginia
3. Rappahannock River, Va.
4. Allatoona Pass, Ga.
5. Etahwa River, Ga.
6. Resaca, Ga.
7. Peach Tree Creek, Ga.
8. Ringgold, Ga.
9. Tennessee River, Tenn.
10. Tennessee River, Tenn.
11. Lookout Mountain, Tenn.
12. Missionary Ridge, Tenn.
13. Lookout Mountain, Tenn.
14. Missionary Ridge, Tenn.
15. Belle Plain, Va.
16. Belle Plain, Va.
17. Gettysburg, Pennsylvania
18. City Point, Va.
19. Petersburg, Va.
20. James River, Va.
All photos via the National Archives.