Crater
Mongolian coal basin.
Crater
Coal mine in Kentucky, USA.
Crater
Scottish coal basin.
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Largest Indian coal basin.
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Nigerian coal field.
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Largest Japanese coal field.
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Largest Moroccan coal basin.
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Chinese coal basin.
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Coal field on Borneo, Indonesia.
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South African coal basin.
Crater
Russian coal basin.
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Largest French coal basin.
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Bulgarian coal field.
Crater
Coal field in Alaska, USA.
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Australian coal basin.
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Mexican coal fields.
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Largest New Zealand coal field.
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Pakistani coal field.
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Canadian coal field.
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Spanish coal field.
Crater
Principal state in Venezuela in which coal is mined.