Here between Maryland and the Delaware curve is a wedge-shaped tract of about 800 acres. For more than a century claimed by Pennsylvania but governed by Delaware. A joint commission appointed 1889 from both states awarded it to Delaware. Ratified by Pennsylvania 1897, by Delaware 1821, and by Congress 1921.

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The Delaware Public Archives operates a historical markers program as part of its mandate. Markers are placed at historically significant locations and sites across the state. For more information on this program, please contact Connor Graham at (302) 744-5019 or via email at

LOCATION: New London Road, Route 896 at DE/PA Line.