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Verified Coordinates: Latitude, Longitude (i.e 38.077,-89.030)
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The roof was generally gray shale, requiring 1.5 to 2 feet of top coal for support. In some areas, the roof was black shale and/or limestone. The source map showed caved areas in the southeast tip of the mine. Many small unmined areas within the mine showed that geologic problems of some kind hindered mining, but these were not labeled on the source map.
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