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    The harbor of Annapolis Scale 1:60,000. Triangulation by James Ferguson and Ferd. H. Gerdes, assistants ; the hydrography under the direction of George M. Bache, lieutenant U.S. Navy ; typography by F.H. Gerdes, assistant. Relief shown by hachures. Depths shown by contours and soundings. Covers Annapolis region including Severn River and adjacent part of Chesapeake Bay. Available also through the Library of Congress Web site as a raster...
    • Contributor: United States Coast Survey - Bache, A. D. (Alexander Dallas) - Cutts, R. D. (Richard Dominicus) - Ferguson, James - Gerdes, F. H.
    • Date: 1846