Nice video. Every year or two the shipping channel on the Columbia River near Longview has to be dredged. This is due to the sediment from the eruption of Mt. St. Helens is still draining into Columbia from the Cowlitz River. Thanks for posting. John
Nice video. Every year or two the shipping channel on the Columbia River near Longview has to be dredged. This is due to the sediment from the eruption of Mt. St. Helens is still draining into Columbia from the Cowlitz River.
Thanks for posting.
John