Category:Hughes bore hole
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Main Wikipedia article: Hughes bore hole.
acid mine drainage site in Pennsylvania, US | |||||
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Media in category "Hughes bore hole"
The following 2 files are in this category, out of 2 total.
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Hughe's Bore Hole 071.jpg 2,304 × 1,728; 1.3 MB
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Hughe's Bore Hole 081.jpg 2,304 × 1,728; 994 KB