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In page Whitehall Township, Lehigh County, Pennsylvania:

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In 1867 eastern portions of both North and South Whitehall were reapportioned into the current Whitehall Township. The new Whitehall Township is generally rectangular in shape, running from NNW to SSE and is situated along the western bank of the Lehigh River. Two years after the new township's formation, the Borough of Coplay was incorporated, removing from the township a square section of 0.6 square miles (1.6 km2). Whitehall is drained by the Lehigh River, which separates it from Northampton County and Catasauqua.