| 11. | Together with neighboring towns it forms industrial Ostrava-Karvin?Coal Basin.
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| 12. | Black shales from Llanvirnian times are found in the Central Coal Basin eastern side.
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| 13. | These tunnels drain more than, of which contain coal basins.
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| 14. | It is rich in ores, and it is also part of the Kuznetsk Coal Basin.
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| 15. | This basin is approximately northwest of a coal basin known as the Roberts Run Basin.
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| 16. | The watershed of the tributary Little Shickshinny Creek is located in the Wyoming Coal Basin.
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| 17. | Charleroi is in the center of a vast coal basin, called " Pays Noir ".
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| 18. | It includes four coal basins in three geographic locations.
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| 19. | The area lies within the Upper Silesian Coal Basin.
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| 20. | This coal basin is part of a chain of coal-containing areas that runs between Dauphin County.
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