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- The Black Thunder Coal Mine is a surface coal mine in the U.S. state of Wyoming, located in the Powder River Basin which contains one of the largest deposits of coal in the world. Black Thunder is the second most productive mine in the United States, providing the US with 8% of its coal supply. In 2007, the mine produced 86,196,275 short tons (78.2 million metric tonnes) of coal, nearly 20% of Wyoming's total coal production, and higher than 23 other individual coal producing states. Black Thunder's dragline excavator Ursa Major is the biggest working dragline in North America and the third largest ever made. It produces enough coal to load up to 20-25 trains per day. Draglines are not used to dig coal, but only strip overburden. Black Thunder operates six draglines. Coal is excavated by power shovels and loaded into haul trucks.In 1974, exploration geologist Lewis R. Ladwig drilled exploratory holes on the Jacob sheep ranch. He was working for ARCO. He discovered the coal reserves of the basin.In 2009, the America's Power Factuality Tour stopped at the Black Thunder Coal Mine to report on its role in generating electricity in the US. In 2010, the Black Thunder Mine produced an estimated 115 million tons of coal, an increase of 34 million tons over 2009. The increase was a result of merging the Jacobs Ranch Mine - and its average 38 million tons per year - into the Black Thunder's annual production. With the acquisition of Jacobs Ranch Mine, Black Thunder is now the world's top coal producer. In 2011, the America Revealed "Electric Nation" episode aired on PBS and features Thunder Basin's Black Thunder coal mine. Black Thunder was reported to have mined 101.2 million tons of coal in 2014. The mine produced 99.45 million tons of coal in 2015, it is actually the second-largest (after North Antelope Rochelle Mine) producer of coal in the US. (en)
- La mine de Black Thunder est une mine à ciel ouvert de charbon située au Wyoming aux États-Unis. Elle a produit 78,2 millions de tonnes de charbon en 2007, elle était la deuxième principale mine de charbon des États-Unis. (fr)
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- Black Thunder Coal Mine (en)
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- Black Thunder Coal Min (en)
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- La mine de Black Thunder est une mine à ciel ouvert de charbon située au Wyoming aux États-Unis. Elle a produit 78,2 millions de tonnes de charbon en 2007, elle était la deuxième principale mine de charbon des États-Unis. (fr)
- The Black Thunder Coal Mine is a surface coal mine in the U.S. state of Wyoming, located in the Powder River Basin which contains one of the largest deposits of coal in the world. Black Thunder is the second most productive mine in the United States, providing the US with 8% of its coal supply. In 2007, the mine produced 86,196,275 short tons (78.2 million metric tonnes) of coal, nearly 20% of Wyoming's total coal production, and higher than 23 other individual coal producing states. Black Thunder was reported to have mined 101.2 million tons of coal in 2014. (en)
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- Black Thunder Coal Mine (en)
- Mine de Black Thunder (fr)
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