Scale 1:20,000. LC Civil War Maps (2nd ed.), 389.4 Preliminary edition. "The triangulation was executed in 1852; the topography and hydrography were executed in 1862." General chart showing soundings and bottom contours. ...
Contributor: WillenbüCher, Eugene - WillenbüCher, Eugene Site: American Memory-cultural - Main Catalog Original Format: Map Date: 1862 View catalog record