MapPreliminary chart of St. Helena Sound, South Carolina Scale 1:40,000. LC Civil War Maps (2nd ed.), 389.3 Triangulation, topography, and hydrography executed in 1851, 1856, and 1857. General chart indicating soundings and bottom contours. Includes sailing directions. Description derived from published bibliography. Available also through the Library of Congress web site as raster image.
- Contributor: United States Coast Survey
- Date: 1864