THE WORLDS BUSIEST MOUNTAIN RAILROAD traverses one of the greatest engineering marvels. Completed in 1854, the famous “U-TURN” above Altoona has played host to a railroad industry in continual transition. The volatile late 60s to 80s is our focus. Pennsy yields to Penn Central, but the big bankrupt fields an impressive variety of motive power. In 1971, Amtrak rolls on the scene. “KALEIDOSCOPE” truly lives up to its name in the frantic Bicentennial year. Over a dozen color schemes are viewed as Conrail is established as the new tenant. Changeless, though, is a fabulous Allegheny panorama – revealed in all four seasons. Copyright 1988 Revelation Video. 90 minutes.