DE/PA Arc Monument

USA / Delaware / Newark /
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In 1892, W.C. Hodgkins, Office of the U. S. Coast and Geodetic Survey, was contracted by a joint commission to survey and monument the Delaware-Pennsylvania boundary. Hodgkins extended the northern boundary of Maryland eastward across the top of the Wedge to the 12-mile Circle. This created the Top of the Wedge Line. Hodgkins then marked the 12-mile Circle every half-mile. Including the initial point and a terminal point there are 46 monuments. The initial and terminal stones are made of dark gneiss of the Wilmington Complex and bear the names of the commissioners representing Pennsylvania and Delaware. The rest of the stones are pryamidic frustums of gray gneiss monuments, 10 inches square at the top and projecting from 2 to 30 inches above the ground. The half-mile stones bear a "1/2" on their west side . The mile stones bear a "P" on the north face, a "D" on the south face, the mile number from the initial stone on the west face, and the date 1892 on the east face.
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Coordinates:   39°43'19"N   75°46'26"W

Comments

  • Known locally as the Arc Corner
This article was last modified 12 years ago