02533cem a22004811 4500 11969299 20250606181655.7 aj|aanzn cr|||| 000410s1864 xxu a f eng 11969299 7 cbc orignew u ncip 19 y-geogmaps LCAP batch update 2025-06-01-04:00: LCAPM-893 99447159 (DLC) 99447159 DLC DLC DLC G3792.P6P5 1864 .U52 CW 53.4 3792 P6 P5 lcg United States Coast Survey. Potomac River (in four sheets): Sheet no. 4, from Indian Head to Georgetown From a trigonometrical survey under the direction of A. D. Bache, Superintendent of the survey of the coast of the United States. Triangulation by A. D. Bache, Supdt., C. Ferguson, C. Hosmer and C. H. Boyd, Sub-Assts. Topography by A. M. Harrison, C. M. Bache, Assts., J. Mechan, C. Hosmer and C. H. Boyd, Sub-Assts. Hydrography by the parties under the command of Lieut. comdr. T. S. Phelps, U.S.N. and C. P. Patterson Assis. Redd. drng. by H. Lindenkohl and L. Karcher. Engd. by A. Maedel and A. Petersen. 1864 [S.l.] 1864. 1 map 99 x 58 cm. "No. 391" in upper left corner of map. "Electrotype copy no. 1, by G. Mathiot, U.S.C.S." is printed in the upper margin. Information concerning lighthouses, tides, soundings, and the geographic coordinates of the Capitol dome is given in the lower right corner. Description derived from published bibliography. Scale 1:40,000. LC Civil War Maps (2nd ed.), 53.4 Available also through the Library of Congress web site as raster image. Nautical charts Potomac River Estuary. Harbors Washington (D.C.) Maps. Washington (D.C.) Maps. Maps. lcgft https://id.loc.gov/authorities/genreForms/gf2011026387 Bache, A. D. (Alexander Dallas), 1806-1867. Harrison, A. M. (Alexander Medina), 1829-1881. United States Potomac River Estuary. United States District of Columbia Washington. Library of Congress Geography and Map Division Washington, D.C. 20540-4650 dcu Copy 1 g3792p cw0053400 http://hdl.loc.gov/loc.gmd/g3792p.cw0053400 c GMD/CWMAP ammem GMD/MILMAP ammem 20000411 c-G&M em