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Mountaintop removal mining (MTR), also known as mountaintop mining (MTM), is a form of surface mining at the summit or summit ridge of a mountain. Coal seams are extracted from a mountain by removing the land, or overburden, above the seams. This process is considered to be safer compared to underground mining because the coal seams are ...
Columbia Energy Center in Wisconsin with a coal ash pond landfill. An ash pond, also called a coal ash basin or surface impoundment, [1] is an engineered structure used at coal-fired power stations for the disposal of two types of coal combustion products: bottom ash and fly ash.
Train carrying mined coal through Ashtabula. Ohio has an estimated 11 billion short tons of recoverable coal resources. Ohio is ranked #7 in the country in overall coal reserves, with 23 billion short tons, 11 billion of which is recoverable. [49] In 2008, the state mined 26 million short tons of coal, ranking #11 in the country in production. [50]
Cardinal Power Plant is a 1.8-gigawatt (1,800 MW) coal power plant located south of Brilliant, Ohio, in Jefferson County, Ohio. The power plant has three units. Cardinal is co-owned with Unit 1 owned by American Electric Power's (AEP) subsidiary, AEP Generation Resources. Units 2–3 are owned by Buckeye Power, a utility cooperative. It began ...
Sand and gravel, salt, sandstone and conglomerate all have production over one million tons. Shale and clay are also quarried. Ohio produces three billion dollars worth of natural gas and $844 million of oil annually. Coal deposits were first recognized in the 1740s by early settlers and were mapped as early as 1752.
The Pittsburgh coal seam is the thickest and most extensive coal bed in the Appalachian Basin; [1] hence, it is the most economically important coal bed in the eastern United States. The Upper Pennsylvanian Pittsburgh coal bed of the Monongahela Group is extensive and continuous, extending over 11,000 mi 2 through 53 counties.
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Retreat mining is a particularly dangerous form of mining. According to the Mine Safety and Health Administration (MSHA), pillar recovery mining has been historically responsible for 25% of American coal mining deaths caused by failures of the roof or walls, even though it represents only 10% of the coal mining industry. [ 13 ]