With an SD40-2 / DDA40X / DDA40X / DDA40X / DDA40X / SD40-2 lash-up on the headend, and a cupola caboose on the rear, this piggyback train epitomizes the short, fast, high-priority trains for which became common on the Union Pacific in the 1970s. This eastbound is passing through Ono, on the outskirts of San Bernardino, California, as it ascends Cajon Pass. (To see the front end of this train, click HERE.)
