Coal mining, Definition, History, Types, & Facts

Coal mining, extraction of coal deposits from the surface of Earth from underground. Coal has been used since the Bronze Age, 3,000 to 4,000 years ago, and was the basic energy source that fueled the Industrial Revolution of the 18th and 19th centuries.

Coal mining - Citizendium

Coal mining in the United States - Wikipedia

History of coal mining - Wikipedia

Coal mining and transportation - U.S. Energy Information

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Coal mining - Wikipedia

COAL ENERGY RESOURCES - Alaska Energy Wiki

Coal mining, Definition, History, Types, & Facts

Coal mining - Wikipedia

About Coal Mine Methane

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