Commencing at a point on the Boundary line of the city of Easton, and running by way of Nazareth, Bath, Northampton, Seigfried, Treichlers, and Walnutport to a point on a dividing line between Northampton and Lehigh counties; thence to Slatington; thence over route one hundred sixty-three into Mauch Chunk, Carbon County, and from Walnutport by Spur northwardly on the easterly side of the Lehigh River, to intersect route one hundred and sixty-three at Lehigh Gap, in Northampton County.
36 P.S. § 1147