Keeping traffic moving over the mountain grades in the Alleghenies is these set of helpers based out of Altoona. Helper crews keep busy shoving or moving around to be in position for the next shov... (more)

A loaded slab train crawls the mountain grade west out of Altoona. A 4 pack of SD40E's shove hard on the back of this heavy train as they transverse the Alleghenies. The train is about to past MG ... (more)