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Debris from Mount St Helens Threatens Mudslides in Washington
A U.S. Geological Survey geologist warns that 0.5 cubic miles of May 18 debris could erode and race as mudflows toward Kelso and Longview, wash into the Columbia River, and threaten shipping to Portland. Dams on Toutle River breached by rains. Spirit Lake impoundment risk details. broader climate and crop impacts noted.
MENTIONED IN THIS ARTICLE
New York Times
Toronto
Mount St. Helens
Richard J. Janda
United States Geological Survey
Columbia River
Portland
Washington
Kelso
Longview
Janda
Tootle River
Army Corps of Engineers
Toutle River
Columbia
Spirit Lake
St. Helens
Donald W. Peterson
Geological Survey
Vancouver, Wash