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    Coal Mining in Scotland 1840-1920 - SCAN. Coal mining has existed in Scotland since the 12th century. The development of the steam engine by James Watt in the 18th century began to increase demand for coal.


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    Underground mining methods: These are the methods/techniques employed when the depth of the deposit,the stripping ratio of the overburden to ore,or both becomes excessive to surface exploitation. Choice of an underground mining method is often closely related to the Geology of the deposit and degree of ground support necessary to make the ...


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    Anthracite coal is mined mainly in eastern Pennsylvania. The Pennsylvania anthracite mining region lies within an eight county area located in the northeastern part of the state. It is estimated that anthracite coal is located in a 484 square mile area.


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    The Hawk's Nest Tunnel Incident The Hawk's Nest "Incident" was not a coal mining disaster but it has been called the worst industrial disaster in the history of the United States.


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    Removal of large strips of overlying rock and soil to reveal coal. Open-Pit Mining. Removal of rock and soil creating a vast pit where coal can be extracted. Mountaintop Removal Mining. Removal of mountain tops with explosives. Land made flat after reclamation. ... PowerPoint Presentation Last modified by: