| Wye Switches. Here is an original photo that I took of a Pennsylvania Railroad train at the Wye Switches in Duncansville, Pennsylvania during the Summer of 1963. Shown here is PRR engine #7163, an EFS-17M built by GM-EMD in October of 1957 and rated at 1,750 horsepower. It is pulling a mixed-cargo freight train from the Altoona Yards and is about to cross US Route 22, after which it will proceed to the Hollidaysburg Yards on tracks that occupied the original right-of-way of the Allegheny Portage Railroad (1834-1854). |