Santa Fe 5517 and Santa Fe 8019 lead a westbound manifest near the Fullerton airport.
The last of Santa Fe's SD45-2Bs makes up part of the consist of a heavy eastbound manifest crossing Tehachapi Creek below the Loop.
As the dispatcher routes a hot 991 train through the north siding, a westbound manifest holds the main, moving at track speed to get out of the way of the time-sensitive UPS train.