• 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
  • Map of the Potomac River, Va. : from Alexandria to below the Occoquan.

    Regional map of the lower Potomac River in Virginia, including Alexandria and Fairfax Court House. The Loudoun & Hampshire Railroad is also indicated.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • 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 showing positions of Union and Rebel forces Septr 1861.

    Depicts the area between Lewinsville, in Fairfax County, and Georgetown in the north, and Alexandria in the south. The location of the Loudoun and Hampshire Railroad is also indicated.

    • 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