Jones Point Lighthouse: in an opening in the seawall of the lighthouse at Jones Point Park on the Potomac River in Alexandria, VA. The lighthouse was built in 1855 and a seawall was constructed in 1861. As documented by Woodward and others, the stone was hidden behind this seawall until June 1912. Because the stone remains in an enclosure in the wall, it still is not possible to view it in its entirety. The Northern Virginia Boundary Stones Committee report (1995) states that the original stone was replaced in 1794. Indeed, this stone differs from original stones in at least two significant ways. First, as Woodward noted in a reading before the Columbia Historical Society on March 18, 1913, "The stone is slightly varied in shape from the remaining ones, being about eleven inches by nearly fourteen inches, instead of the usual twelve by twelve." Second, the stone lacks the full inscription. As observed in a Washington Times article from June 23, 1912, "The inscriptions are almost illegible, only portions of the letters being visible, these being on the southwest side, the southeast side bears a part of the date, the figure '7' being discernible. ... The two remaining sides are unmarked and bear no evidence of ever having been inscribed." A close-up photo of the stone in the National Capital Planning Commission report (1976) shows the faint remains of some letters, although it is not possible to determine what they say.

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