Operating on trackage rights, UP SD70ACe 8356 leads UP coal train CWELB-08 (BNSF F CWELB01 08) west over the natural crossover between Frost and Hesperia on BNSF's Cajon Sub.

A heavy coal train off the UP heads towards Cajon Pass and Long Beach, CA passing the natural crossovers.

Eastbound Z (Los Angeles to Marion AR)

My goal train was the Weyerhaeuser train, but this UP train came along and had other ideas.