| Here is the second of three frames showing a relief map of the Allegheny Mountains that's included in the monograph entitled "Sylvester Welch's Report On The Allegheny Portage Railroad: 1833." It was published by William H. Shank in June of 1988. Shown here are the respective routes of the Pennsylvania Main Line Canal, the Old Portage Railroad, the New Portage Railroad, as well as the Pennsylvania Railroad circa 1896. |