United States. Army. Corps of Engineers. cartographic Maps. lcgft https://id.loc.gov/authorities/genreForms/gf2011026387 [S.l., 186-] eng At bottom of map: View off North Channel, For Sumter 3 1/2 miles distant, bearing W. 3/4 N., Febry. 18th 1865. This map without the Corps of Engineers' insignia appears as Plate II of the Supplementary Report published with Q. A. Gillmore's Engineer and Artillery Operations Against the Defenses of Charleston Harbor in 1863; with a Supplement. (New York, D. Van Nostrand, 1868). 314, 172 p. (U.S. Army. Corps of Engineers. Professional papers, no. 16) Shows drainage, vegetation, roads, railroads, soundings, shoals, channels, forts, batteries, picket line of the U.S. forces, plan of the city with the "effective, annoying [and] extreme range" of guns from Cumming's Point. The obstructions in the channel are marked A to R and are explained in a letter of William H. Dennis, dated March 17, 1865, to Gillmore, which appears in the Supplement, p. 31-32. Description derived from published bibliography. Scale 1:60,000. LC Civil War Maps (2nd ed.), Charleston Region (S.C.)--History--Civil War, 1861-1865--Maps. United States Charleston Region. Available also through the Library of Congress web site as raster image. http://hdl.loc.gov/loc.gmd/g3914c.cw0377000