Category:Eruption products of Mount St. Helens
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This category has the following 4 subcategories, out of 4 total.
Media in category "Eruption products of Mount St. Helens"
The following 4 files are in this category, out of 4 total.
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Pumice (Mt. St. Helens, Washington State, USA) 1.jpg 2,072 × 1,908; 2.28 MB