A small patch of sunlight peaks through the cloud cover as the BKDOU's helper rounds the curve that leads into tunnel 1 above Caliente.
A six-unit helper assists a manifest as it climbs out of Caliente and through tunnels 1 and 2.
SD45R 5401 leads a heavy westbound manifest up the grade toward Franklin Canyon through Martinez.
As the head end power of the Oil Cans rounds that curve at tunnel 1, the heavy train's helper roars through the curves in the distance.
An SP eastbound roars up the grade out of Caliente toward tunnel 1.
As the lead locomotives of an eastbound SP manifest approach tunnel, the swing helper can be seen in the distance climbing out of Caliente.
