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Rock Crushing Under Ground Machine Nicaragua

201992iron mining in the united states produced 42million metric tons of iron ore in 2015, worth us3billionron ore was the thirdhighestvalue metal mined in the united states, after gold and copper iron ore was mined from nine active mines and three reclamation operations in michigan, minnesota, and utahst of the iron ore was mined in northern minnesotas mesabi range.

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