When me and my Mother lived up there, I sure seen some huge ships from Japan come in...One came into Kachamak bay once that looked a mile long to me then, ... loaded up all the logs that were floating out there....they said that it was a mill ship that would process all the wood by the time it reached it's destination.
I have seen "log ships" leaving northwest ports for Asia. I have never heard of a mill ship that would process the wood in transit. Sounds like a fairy tale. You secure cargo on deck, the last thing you want is heavy logs getting loose on a vessel crossing the Pacific.