Category:Obsidian in Wyoming
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This category has the following 4 subcategories, out of 4 total.
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Media in category "Obsidian in Wyoming"
The following 4 files are in this category, out of 4 total.
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Obsidian intrusions (df268ad2-b647-42be-b9c1-3e513efce3fe).jpg 4,599 × 6,898; 26.71 MB