After integrating territories served by the Southern Pacific, Chicago & North Western and Denver & Rio Grande Western into its fold, Union Pacific became a new super railroad and thus required new superpower. This exciting video showcases its state-of-the-art diesel muscle and features powerhouses such as the AC6000CW, the AC4400 and the SD70M. You'll learn the power secrets of these leviathans and see them in action as they blister across UP's Nebraska mainline with heavy mixed freights and intermodals. Color, 58 min. #0RV8121