SP Power on the service track at Napa Jct CFNR service facilities.
It's 1994:
CFNR SD9 203 is just about to depart with a short mixed freight West to Suisun, and will continue it's run north towards Willits, to be part of a lash up of 4 SD9's for the downhill run of a long string of flat cars loaded with wood, the so called Willits turn.