SP&S Alcos on the WP 

Burlington Northern and Western Pacific ran pool trains between the Pacific Northwest and California before WP was swallowed by the Union Pacific.  In the late 60s and early 70s, Burlington Northern's inherited Spokane, Portland and Seattle Alco Century locomotives were major participants in the pool power that hauled these trains.  Below is a collection of Alcos on the WP

West of Oroville       The F units     Silver, Orange & Green Units