Something that's always confused me is why UP has their own line between Tacoma and Seattle. The fact that it exists isn't what confuses me, obviously it's to stay out of the way of BNSF/Sounder trains, but it's weird because the closest UP tracks to Tacoma are about 120 miles south in Portland. Can anyone give me a brief history as to how this line came to exist? Was in inherited? When was it built? Has it always been owned by UP? How and why did UP start operating out of Tacoma/Seattle?
Unrelated: When I was exploring the area today, I saw a UP train that was coming in from the UP line onto the BNSF Seattle Sub at Tacoma Junction with CP three CP engines and all grain cars with Canada written on them. How/why did UP end up with a train from Canada? I thought UP was 100% intermodel traffic from Seattle. Wouldn't it be more likely it's coming from Vancouver down on BNSF tracks and consequently would be a BNSF train?
Unrelated: When I was exploring the area today, I saw a UP train that was coming in from the UP line onto the BNSF Seattle Sub at Tacoma Junction with CP three CP engines and all grain cars with Canada written on them. How/why did UP end up with a train from Canada? I thought UP was 100% intermodel traffic from Seattle. Wouldn't it be more likely it's coming from Vancouver down on BNSF tracks and consequently would be a BNSF train?