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Stem Coal Mining How They Processed

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Stem Coal Mining How They Processed

If they got coal, they knew they had to mine in that area to find more coal. They also had to figure out the economic cost and to factor in the expense of mining when they only got sand. In addition, after all the coal was mined out, they had to reclaim the land, for which they also had to figure in the expense of moving sand, then moving it ...

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