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Verified Coordinates: Latitude, Longitude (i.e 38.077,-89.030)
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The roof was sandy gray shale that fell in large tabular masses. From 19 to 24 inches of top coal was left to support and protect the roof. A few rolls and slips were present in the seam. The mine had a considerable number of swags and hills. The coal thinned in the swags. A few rolls were present in the seam, and the rolls, when present, always occurred in the swags. Pyrite balls were irregularly dispersed through the mine, and some dirt bands were present in the seam. The floor was a very hard underclay 10 or more feet thick that rarely heaved.
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