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Tag: iron mining

Cuyuna Range Natural Iron Ore Mine and Ore Reserve Properties

Natural Resources Research Institute

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Cuyuna Range Underground Mine Drifts

Natural Resources Research Institute

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Cuyuna Range Underground Mine Shafts

Natural Resources Research Institute

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Cuyuna Range Underground Mined Extents

Natural Resources Research Institute

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Iron Ranges – Mine Infrastructure

Natural Resources Research Institute

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Iron Ranges – Mine Pits

Natural Resources Research Institute

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Iron Ranges – Mine Stockpiles

Natural Resources Research Institute

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Iron Ranges – Mine Tailings

Natural Resources Research Institute

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Mesabi Range Documented Mine Shafts

MN Dept. of Natural Resources

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Mesabi Range Outlines of Underground Caved Areas

MN Dept. of Natural Resources

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Mesabi Range Underground Mine Parcels

MN Dept. of Natural Resources

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Mesabi Range Underground Mine Properties

MN Dept. of Natural Resources

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Mesabi Range Underground Mine Workings

MN Dept. of Natural Resources

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