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  • Iron Mountain Iron Mine

    Iron Mountain Iron Mine

    This mine operated for 68 years and produced 21,625,000 tons of iron ore for the great steel mills of the Midwest. Travel 2,600 feet through drifts and tunnels to 400 feet below the earths surface. See amazing rock formations and large underground lighted caverns.

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  • Iron ore mine

    Iron ore mine

    . oxide started in the Dunderland valley more than 100 years ago. Until 1999 was only mined by open pit methods. Today Rana Gruber operates the Kvannevann as well as satellite deposits which are mined by open-pit methods. Open stope method has been used in the until 2012.

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  • Underground Mine Mapping -- Maps | Minnesota DNR

    Underground Mine Mapping -- Maps | Minnesota DNR

    maps were obtained from government agencies, companies, and private fee representatives. Contributing entities included Minnesota of Division of Lands and Minerals MNDNR, Range Research Center IRRC, Minnesota Department of Revenue Minerals Tax Office, the St. Louis County Inspector ...

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  • UNDERGROUND BIRMINGHAM IMAGES FROM BIRMINGHAMS …

    UNDERGROUND BIRMINGHAM IMAGES FROM BIRMINGHAMS …

    IN STOCKUnderground Birmingham: Images from Birmingham’s Iron Ore Minestakes the reader on a 96 page pictorial journey deep into the cold, dark and long abandoned mining tunnels that are now buried and hiding along the ridge of Birmingham’s Red Mountain.Red Mountain iron ore is in the Clinton Formation, a geologic formation that runs from New York down into Alabama to the southern terminus …

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  • Mineville Iron Mines Near Port Henry, New York | The Diggings™

    Mineville Iron Mines Near Port Henry, New York | The Diggings™

    The Mineville are near Port Henry, New York. Historically the area has been part of the Mineville District. The site was first discovered in 1810. The Mineville was closed at the time of data entry with no known plans to re-open. operations consist of workings. There are a total of 2 shafts.

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  • Underground Birmingham: Images from Birmingham’s Iron Ore ...

    Underground Birmingham: Images from Birmingham’s Iron Ore ...

    Underground Birmingham: Images from Birminghams Iron Ore Mines takes the reader on a pictorial journey deep into the cold, dark and long abandoned mining tunnels that are now buried and hiding along the ridge of Birminghams Red Mountain. Red Mountain iron ore is in the Clinton Formation, a geologic formation that runs from New York down into Alabama to the southern terminus of the Appalachian …

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  • Newman Mine MRDS #10138157 - USGS

    Newman Mine MRDS #10138157 - USGS

    subject category comment text deposit: thin discontinuous seam of inplace no reserve estimate possible. last operator claimed 55 pct cr2o3 cr/fe 3.5 to 1 was typica last operator claimed"good reserves were left insufficient data for matrix calculation analysis by cdmg in 1976 gave following percentages-massive 2 09.90,cr2o3 49.33,feo 09.35,total fe 12.87,al203 06.22,mgo cr/fe 3.38 ...

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  • New book shows what’s left of Alabama’s abandoned mines ...

    New book shows what’s left of Alabama’s abandoned mines ...

     · The culmination of their work is a new book called “ Birmingham,” which includes more than 100 photos from inside Birmingham’s abandoned .

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  • Mining Terms Explained: A to Z | Anglo American

    Mining Terms Explained: A to Z | Anglo American

    an underground tunnel on a mine that follows a seam or vein of ore, which can be used for access or drainage purposes.

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