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Oregon Field Guide

Debris Flow

OPB | Feb. 1, 1996 7:30 p.m.

One of the most dangerous effects of volcanic eruption is a debris flow of water and ash.

Oregon Field Guide

Columbia River Dredge

OPB | Feb. 1, 1996 7:30 p.m.

A high-tech dregding ship keeps the channel in the middle of the Columbia River clear.

Oregon Field Guide

Wildlife Viewing

OPB | Feb. 1, 1996 7:30 p.m.

"The Wildlife Viewing Guide" is a book that covers wildlife throughout the state.

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Earthquake Preparedness

October 1, 8 p.m. [OPB TV]

Episode #2702

October 8, 8:30 p.m. [OPB TV]

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Major Support Provided By: Dorothy D. Gage and Dan Stanton, Fred and Clara Dolen Charitable Foundation

Additional Support Provided By: Kay Kitagawa and Andy Johnson-Laird, Christine and David Vernier, Coit Family Foundation, Beth Torry Miller Trust, Greenfield/Hartline Habitat Conservation Fund of the Nature Conservancy, The Roundhouse Foundation, Bonnie and Peter Reagan