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1950s, historical, freshly dug coal being carried or transported underground on conveyor belts in a mine, England, UK. Photographed in May 1972, these mine workers in Wanamie, Newport Township, Luzerne County, enter one of the last underground coal …

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Far too many to produce here. Photos in this section will be replaced on a rotating basis. The current leading cause of fatal mine accidents are roof falls. Measures to control and maintain an underground mines' roof are vital to safe and productive underground mining, notice both the twin head and quad head roof bolters.

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The mine is located 650 feet below the surface. The coal seam height was 15 feet. This unit set a Longwall production record (which has since been surpassed). Longwall mining is state of the art for underground coal mining, achieving very high production rates of 2,000 - 20,000 tons per shift, depending upon coal seam height and local conditions.

Underground Coal Mining. Underground mining involves opening one or more portals or shafts into the earth that follow or intercept coal seams that are too deep for surface mining methods. Two main methods of underground mining are practiced in Pennsylvania: Room-and-Pillar: Generally used for seams that are relatively flat or gently dipping. As ...