Category:Holocene pyroclastic rocks from Mount St. Helens
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Media in category "Holocene pyroclastic rocks from Mount St. Helens"
The following 9 files are in this category, out of 9 total.
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Pumice (Mt. St. Helens, Washington State, USA) 1.jpg 2,072 × 1,908; 2.28 MB
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Pumice (Mt. St. Helens, Washington State, USA) 2.jpg 2,477 × 1,818; 2.67 MB