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View of the mudflow beginning to move downstream from the blast material deposited in the North Fork Toutle valley. Mount St. Helens, Cowlitz County, Washington. 1980.

Dates

Date Taken
1980-05-18

Summary

Index card: View of the mudflow beginning to move downstream from the blast material deposited in the North Fork Toutle valley. This mudflow took nine hours to build in size sufficient to reach through the blasted material and move downstream to the Cowlitz River valley. The mudflow on the South Fork Toutle River arrived at Castle Rock three hours after the eruption of Mount St. Helens and that from the North Fork by 12 hours. Cowlitz County, Washington. May 18, 1980. (Photo by Harry Glicken, USGS/CVO).

Contacts

Data Owner :
U.S. Geological Survey
Photographer :
Glicken, Harry

Attached Files

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cvoa0033_ct.jpg thumbnail 50.65 KB image/jpeg
cvoa0033_ct.tif 1.06 MB image/geotiff

Material Request Instructions

Available in the U.S. Geological Survey Denver Library Photographic Collection, Mount St. Helens Slide Collection, Cascades Volcano Observatory (CVO), A-E Collection.

Rights

This USGS product is considered to be in the U.S. public domain. For further information on the USGS Information Policies and Instructions, refer to the Copyrights and Credits section on this web page: http://www.usgs.gov/laws/info_policies.html

Additional Information

Identifiers

Type Scheme Key
Photo Number https://www.sciencebase.gov/vocab/category/item/identifier cvoa0033_ct

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