Pennsy's Horseshoe Curve has witnessed the evolution of railroading and this video showcases a parade of trains that include wood-burning steamers; K4, M1 and T1 super-steam, and a plethora of diesels from the 1950s and '60s. Additional footage features Penn Central, Conrail and Amtrak along with shots of the famous Aerotrain and a 12,000 ton freight train laboring up The Curve with engines at the front, middle and rear! Color and B&W, 1 hr. 20 min. #0RV8913