• The U.S. forts and batteries near Alexandria Va. Sept 1862 showing Fort Lyon with extended works.

    Shows the locations of Union fortifications surrounding Alexandria, Va., including forts Lyon and Ellsworth in Fairfax County. The locations of Hunting Creek and the Potomac River are also indicated.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1862
  • Fort Lyon, near Alexandria, Virginia

    The map shows a close up drawing of Fort Lyon located on Eagle Hill in Alexandria, Virginia. Shows the fort's defenses, including abatis, ditches, salients, sally port, and bomb proof.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • [Map of Alexandria, Virginia]

    Illustrates Alexandria's central position in the defense of Washington, where at least 12 outlying forts surrounded the city. Military camps of various Union officers such as Samuel Peter Heintzelman are indicated on this map.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861