It is a cold winter morning as Union Pacific 3596 and UP 2478 near the summit in Cajon Pass.
UP 3596 waiting for the fuel truck near the Stockton UP shops.
UP MRVSJ power SD40-2R #3596 & SD60M #2469
UP's MRVSJ making it's way through Emeryville in route to San Jose, CA from Roseville, CA