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Cliffs Natural Resources invites local teachers to review operations, reclamation efforts

October 17, 2012
By JACKIE STARK - Journal Staff Writer ( , The Mining Journal

MARQUETTE - When it comes to its mining operations at the Tilden and Empire mines, Cliffs Natural Resources goes big - giant trucks the size of most houses, piles of waste rock that reach up hundreds of feet, more than 13 million tons of hematite and magnetite pulled from the Earth annually.



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