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  • Catalog Record

    Head of navigation of the Potomac River / Catalog Record - Electronic Resource Available

    Relief shown by hachures. Depths shown by contours and soundings. Photocopy of ms. map. Oriented with north toward the upper left. Includes notes. LC copy originally printed on separate sheets, assembled to 1 sheet, thirded, mounted on cloth backing, accompanied by negative photocopy, and annotated in pencil: From negative transferred from War Department. Available also through the Library of Congress Web site as a ...

    • Contributor: Abert, S. T. (Silvanus Thayer) - Graham, Campbell - United States. Army. Corps of Topographical Engineers
    • Original Format: Maps
    • Date: 1849
  • Catalog Record

    Chart of the head of navigation of the Potomac River shewing the route of the Alexandria Canal : made in pursuance of a resolution of the Alex'a Canal Company Oct. 1838 / Catalog Record - Electronic Resource Available

    Nautical chart of the Potomac estuary within the District of Columbia. Relief shown by hachures. Depths shown by contours and soundings. Oriented with north toward the lower right. Stephenson. Cartography of northern Virginia, pl. 29-30 Includes note. LC copies fold-lined and mounted on cloth backing. Copy 1 annotated in ink in right lower margin: From Senate Doc. 178, 26th Congress, 2nd Session, Feb. 5., ...

    • Contributor: Stone, William James - Kearney, James - Turnbull, Wm. (William) - Fairfax, Wilson M. C. - Ewing, Maskell C. - Alexandria Canal Company
    • Original Format: Maps
    • Date: 1838
  • 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
    • Original Format: Maps
    • Date: 1846