The ship, designed to spend months at sea without any human crew, could be spotted in recent weeks cruising the Willamette and Columbia rivers, occasionally spending time at a highly visible dock near Tilikum Crossing.
Elliot Njus | The Oregonian/OregonLive, Portland Oregonian: Business
Thu, 04/07/2016 - 9:00am
The ship, designed to spend months at sea without any human crew, could be spotted in recent weeks cruising the Willamette and Columbia rivers, occasionally spending time at a highly visible dock near Tilikum Crossing.