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  2. Mesabi Range - Wikipedia

    en.wikipedia.org/wiki/Mesabi_Range

    The steelmakers adapted their mills to process the ore from the Mesabi range. Oliver broke with the agreement, and in response, John D. procured a monopoly of ore ship transportation on the Great Lakes. John D. sold his western ore holdings to J. P. Morgan for $90,900,000 soon after Morgan bought Carnegie's steel interests in 1901. [13] [14]

  3. Duluth Works - Wikipedia

    en.wikipedia.org/wiki/Duluth_Works

    Unofficially, they were built as part of a "gentleman's agreement" between U.S. Steel and the State of Minnesota to not impose hefty iron ore taxes on U.S. Steel in exchange for a fully integrated steel plant within Minnesota, [2] whose mines furnished 80% of the ore to U.S. Steel. The combined works of the steel and cement plant were the ...

  4. Iron mining in the United States - Wikipedia

    en.wikipedia.org/wiki/Iron_mining_in_the_United...

    US iron ore made up 2.5 percent of the total mined worldwide in 2015. Employment as of 2014 was 5,750 in iron mines and iron ore treatment plants. [3] US iron ore mining is dominated by the Precambrian banded iron formation deposits around Lake Superior, in Minnesota and Michigan; such deposits were also formerly mined in Wisconsin. For the ...

  5. Oliver Iron Mining Company - Wikipedia

    en.wikipedia.org/wiki/Oliver_Iron_Mining_Company

    After the Merritt brothers began shipping iron ore from their Mountain Iron Mine in 1892, Henry W. Oliver, a Pittsburgh businessman, traveled to the Iron Range to consider investing in the fledgling industry. Impressed by what he saw, Oliver offered to purchase one of the ore deposits for $75,000 and 65 cents per ton of ore mined.

  6. Hull–Rust–Mahoning Open Pit Iron Mine - Wikipedia

    en.wikipedia.org/wiki/Hull–Rust–Mahoning_Open...

    The mine, located in the Mesabi Range, supplied as much as one-fourth of all the iron ore mined in the United States during its peak production from World War I through World War II. This prodigious output made Minnesota the nation's largest iron ore producer and the U.S. the world's largest steel manufacturer. [3]

  7. U.S. Steel - Wikipedia

    en.wikipedia.org/wiki/U.S._Steel

    The United States Steel Corporation is an American steel company based in Pittsburgh, Pennsylvania, with production facilities in the U.S. and Central Europe.. The company produces and sells steel products, including flat-rolled and tubular products for customers in industries across automotive, construction, consumer, electrical, industrial equipment, distribution, and energy.

  8. Iron Range - Wikipedia

    en.wikipedia.org/wiki/Iron_Range

    Erie Mining Company previously mined ore and testing to mine new minerals is ongoing. Keewatin (pop. 1,068) is between Nashwauk and Hibbing. It is home to U.S. Steel's KeeTac taconite mining and processing plant. Kinney (pop. 169) is an old mining boomtown on the Iron Range, between Buhl and Mountain Iron.

  9. Lake Vermilion-Soudan Underground Mine State Park - Wikipedia

    en.wikipedia.org/wiki/Lake_Vermilion-Soudan...

    In 1965, US Steel donated the Soudan Mine to the State of Minnesota to use for educational purposes. [5] The primary underground mining method used was known as cut and fill. This involved mining the ceiling and using Ely Greenstone and other waste rock to artificially raise the floor at the same rate as the ceiling was being mined out.