| Horseshoe Curve-1966. Here is an original photo that I took at the Pennsylvania Railroad's Horseshoe Curve near Altoona, Pennsylvania, durinY early May of 1966. Shown here is PRR engine #2311 and two others whose numbers are not visible. #2311 is an EF-25 built by EMD in 1965 and rated at 2,500 HP. They are pulling an eastbound mixed-cargo freight. |