File:Lahar, Mount St. Helens.jpg

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Lahar,_Mount_St._Helens.jpg ‎(640 × 410 pixels, file size: 29 KB, MIME type: image/jpeg)

Description
English: The twisted girders of a highway bridge lie entombed in mudflow deposits from Mount St. Helens. This May 18, 1980 mudflow was produced by dewatering of the debris-avalanche deposit in the North Fork of the Toutle River and traveled as far as the Columbia River, decreasing the depth of the navigational channel from 11 meters to 4 meters.
Date
Source http://www.volcano.si.edu/world/tpgallery.cfm?category=Lahars%20(mudflows)&photo=028095
Author Dan Miller, U.S. Geological Survey
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(Reusing this file)
Public domain
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.

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Date/TimeThumbnailDimensionsUserComment
current23:28, 6 February 2009Thumbnail for version as of 23:28, 6 February 2009640 × 410 (29 KB)High Contrast{{Information |Description={{en|The twisted girders of a highway bridge lie entombed in mudflow deposits from Mount St. Helens. This May 18, 1980 mudflow was produced by dewatering of the debris-avalanche deposit in the North Fork of the Toutle River and
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