Category:Clay in the United States
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This category has the following 12 subcategories, out of 12 total.
Media in category "Clay in the United States"
The following 4 files are in this category, out of 4 total.
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"Clay banks opposite Hunters" Taken May 22, 1941. (49532733-a95f-439b-ab91-e9e73c0989ec).jpg 5,612 × 4,515; 3.64 MB
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Blue Clay- John Day Fossil Beds. (10763566474).jpg 1,024 × 515; 153 KB
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Clays, their occurrence, properties, and uses, with especial reference to those of the United States (IA cu31924004699843).pdf 831 × 1,275, 608 pages; 19.19 MB