Category:Marcellus Shale outcrops
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This category has only the following subcategory.
Media in category "Marcellus Shale outcrops"
The following 4 files are in this category, out of 4 total.
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Annual report (1913) (14596594859).jpg 2,625 × 4,338; 1.55 MB
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Marcellus I80 MP307.jpg 2,362 × 1,329; 1.21 MB
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MarcellusShaleHill1.jpg 2,448 × 3,264; 3.63 MB
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MarcellusShaleHill2.jpg 2,448 × 3,264; 3.3 MB