| Horseshoe Curve-1966. Here is an original photo that I took at the Horseshoe Curve near Altoona, Pennsylvania, in May of 1966. Partially visible here is Pennsylvania Railroad engine #8668, an AS-18AM built by the American Locomotive Company in February of 1958 and rated at 1,800 horsepower. It;s rounding the Curve at the head of an iron ore train on its way up the Allegheny Mountains to Gallitzin, where the two head-end helpers will be uncoupled and returned to East Altoona. (#30 of 39) |