The Wedge (or Delaware Wedge) is a small tract of land along the border between
Delaware,
Maryland, and
Pennsylvania. Well-intentioned efforts to precisely define colonial boundaries inadvertently created this geopolitical anomaly. This was due, primarily, to the shortcomings of contemporary surveying techniques and the resulting geographical vagaries. It is bounded on the north by an eastern extension of the east-west portion of the
Mason-Dixon Line, on the west by the north-south portion of the
Mason-Dixon Line, and on the southeast by the New Castle, Delaware
Twelve-Mile Circle. Ownership of this land was in dispute until
1921, when Delaware's ownership was confirmed by Pennsylvania. The town of Mechanicsville, Delaware lies within the area today.
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