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File:St Helens before 1980 eruption horizon fixed.jpg


English: USFS Photograph taken before 18 May 1980 by Ryanna Rnderson , US Forest Service, Mount St Helens National Volcanic Monument.
Date 1980
Source US Forest Service
Author Jim Nieland


Public domain This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. See Copyright.

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