Moving West....I believe Portland banned coal shipments by rail, or something...so they are likely loaded out of Vancouver, WA
Or Longview, WA. or Tacoma, WA.
Tacoma is the main shipping port in the Pacific Northwest.
Oakland and Long Beach in CA. These are where most of the stuff from China comes in.
The huge ocean going container vessels/supertankers and bulk Cargo ships can not go up the Columbia River. I am talking about the biggest ships in the world.