| 21. | Deposits of bituminous coal are found in these rock formations.
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| 22. | These were mined commercially for bituminous coal for nearly 140 years, between 1819 and 1958.
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| 23. | An immense deposit ( ) of bituminous coal was found in St . Clair County.
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| 24. | The opening of the coalfields made N & W prosperous and Pocahontas bituminous coal world-famous.
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| 25. | The Intermontane and Insular Coalfields of British Columbia also contain deposits of Cretaceous bituminous coal.
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| 26. | In 1853, Dr . Ansted helped identify the rich bituminous coal seams which lay there.
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| 27. | Production of bituminous coal declined steadily after World War II, and in 1968 ceased altogether.
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| 28. | Anthracitization is the transformation of bituminous coal into anthracite.
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| 29. | The Bituminous Coal Miners'Strike of 1894 lasted from late April through May of that year.
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| 30. | The plant takes advantage of the abundant deposits of bituminous coal from the Surat Basin.
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