Thousands have died at the Columbia River’s bar and adjacent coast ... its flow continues underwater. It's helped carve the Astoria Canyon, an underwater abyss that extends some 75 miles ...

Imagine a six-inch-thick, high-voltage electricity transmission line running underwater on the bottom of the Columbia River, from just east of The Dalles, Ore., to Portland. The line carries ...

PORTLAND, Ore. (KOIN) — A new lead in a decades-old cold case of a missing Portland family has prompted an underwater search of the Columbia River Thursday morning. Investigators with the Hood ...

And that’s not the worst of it. Tons of silt are carried to the mouth of the river to form the ever-shifting Columbia River Bar, an unseen underwater obstacle that’s beached many a ship ...

In many ways, the Columbia River Bar, which has no markers but the surf ... pulling everyone onboard completely underwater, or the vessel can fall over to one side in what surfman instructors ...

Because few rivers or harbors are naturally deep, underwater excavation is needed ... the U.S. Coast Guard and the Columbia River Bar Pilots operate safely.

PORTLAND, Ore. (KOIN) – Authorities are searching for a man who went underwater in the Columbia River near Lemon Island and never resurfaced on Saturday. Officials say someone called 911 at ...