Y
- Yazoo River (Miss.)--History--Civil War, 1861-1865--Maps. (3)
- Yellowstone River--Maps. (1)
- York County (S.C.)--Maps, Manuscript. (1)
- York County (Va.)--History--Civil War, 1861-1865--Maps. (8)
- York River (Va.)--History--Civil War, 1861-1865--Maps. (1)
- York River (Va.)--Maps, Manuscript. (1)
- Yorktown (Va.)--History--Civil War, 1861-1865--Maps. (9)
- Yorktown (Va.)--History--Siege, 1862--Maps. (10)