 The northern terminus was again moved to Kane in 1961, with PA 321 replacing most of the route north of there and the former northern terminus inundated by the Allegheny Reservoir.The north end of PA 68 was cut back to its current location in 1970, with the road between Clarion and Kane becoming part of PA 66.PA 68 begins at the Ohio border in the borough of Ohioville in Beaver County, where the road continues west into that state as SR 39.