Union Pacific No. 4014 turns full power as it crosses over from the Palmdale cutoff to the BNSF Cajon Sub at Silverwood just before it crests the summit of the famed Cajon Pass.

Big Boy's Big Climb: On Saturday October 12, 2019, Union Pacific Big Boy 4014 became the first Big Boy locomotive to pull a train up the famed Cajon Pass in Southern California. Here, 4014 ... (more)

The entire consist of the UP steam special, including 23 passenger coaches, is seen heading up Cajon Pass. The train is traversing the UP Mojave Sub, more commonly known on this stretch as the Pal... (more)

UP Big Boy 4014 leads a long passenger special over the Cajon Wash and up the Palmdale Cutoff enroute to Yermo. A couple diesel helpers are in tow for the climb up Cajon Pass.