Category:Slate in Pennsylvania
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Media in category "Slate in Pennsylvania"
The following 3 files are in this category, out of 3 total.
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Black-banded gray slate from Phoenix Quarry dtn00270.jpg 4,305 × 3,043; 5.6 MB
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Gray Slate label.JPG 4,608 × 3,072; 2.7 MB
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Gray Slate.JPG 4,608 × 3,072; 2.37 MB