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Mason & Dixon’s Tangent Stone

New Castle County · dedicated 1932 · 2 mi. SW of Newark E. side of Lincoln Hwy at Delaware/MD Hwy · location approximate

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In the field between this road and the railroad track is located the famous tangent stone, surveyed and marked by Mason and Dixon in 1764, when surveying the boundary line between Maryland and Delaware. The tangent stone is on the circumference of an arc twelve miles from New Castle.

Digital Commonwealth, Boston Public Library

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Source: State of Delaware Historical Markers Program, administered by the Delaware Public Archives.
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