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Iron Ore Mining In Minnesota

Minnesota History Timeline Minnesota Important Dates and. 1884. In the past, iron ore was mined on three iron ranges - the Cuyuna, Mesabi and Vermilion - and also in Fillmore County in southeastern Minnesota Today, only the Mesabi Range still has iron oretaconite mining taking place Clay is mined in the Minnesota River Valley Clay is used in making bricks, porcelain, tiles, and medicin.

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