Territory of Columbia.
Relief shown by hachures. "Reproduced by the U.S. Coast and Geodetic Survey in February 1898 from a print in the Hall of Maps and Charts of the Library of Congress." Facsimile. Original version: Drawn by And'w Ellicott. [Philadelphia? : s.n., 1793?]. Oriented with north toward the upper left. In left upper margin: No. 3059 price 25 cents. Available also through the Library of Congress...
U.S. Coast and Geodetic Survey - Ellicott, Andrew