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  2. Copper Range Company - Wikipedia

    en.wikipedia.org/wiki/Copper_Range_Company

    The White Pine mine produced copper until 1995. In its early days the company was known for its use of advanced mining and transport systems (not all of which worked very well) including the Dashaveyor , a high speed transportation system, and what was at the time the world's largest hard rock tunneling machine to be sold to a mining company. [ 4 ]

  3. White Pine, Michigan - Wikipedia

    en.wikipedia.org/wiki/White_Pine,_Michigan

    White Pine is located within Carp Lake Township east of the Porcupine Mountains Wilderness State Park. The Copper Range Company operated the White Pine mine in White Pine from 1955 to 1995. [4] White Pine is served by the 49971 ZIP Code, which is the highest numeric ZIP Code in the state of Michigan. [8]

  4. List of copper mines in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_copper_mines_in...

    Copper ore, concentrated and leached 56 (2018) [5] 9 Robinson: White Pine County, Nevada: KGHM Polska Miedź: Copper-gold-molybdenum ore, open pit, concentrate products 51 (2018) [6] 10 Mission Complex: Pima County, Arizona: Grupo México: Copper-molybdenum ore, concentrated

  5. Copper mining in Michigan - Wikipedia

    en.wikipedia.org/wiki/Copper_mining_in_Michigan

    Spectacular specimen of elongated, spinel-twinned copper crystals from the old White Pine mine. The copper-bearing Nonesuch Shale at the south end of the Copper Country in Ontonagon County had been known since the 1800s. But the ore grades were too low, the ore mineral particles too small, and the copper was largely in sulfides instead of ...

  6. IsaKidd refining technology - Wikipedia

    en.wikipedia.org/wiki/IsaKidd_refining_technology

    A modern copper refinery tankhouse using IsaKidd technology. The IsaKidd Technology is a copper electrorefining and electrowinning technology that was developed independently by Copper Refineries Proprietary Limited (“CRL”), a Townsville, Queensland, subsidiary of MIM Holdings Limited (which is now part of the Glencore group of companies), and at the Falconbridge Limited (“Falconbridge ...

  7. Copper mining in the United States - Wikipedia

    en.wikipedia.org/wiki/Copper_mining_in_the...

    The largest copper producer in Nevada has been the Ely district (also called the Robinson district) in White Pine County. A Native American showed mineralization to prospectors in 1867, and the district started in a small way as a lode gold producer.

  8. Mark L. Requa - Wikipedia

    en.wikipedia.org/wiki/Mark_L._Requa

    Requa organized the White Pine Copper Company in 1902. In 1904, Requa merged the White Pine Copper Company and the Boston and Nevada Copper Company into the Nevada Consolidated Copper Company. He formed the Nevada Northern Railway to transport copper ore from the Robinson Mine near Ely, Nevada to Cobre, Nevada. [7] [9] Requa first met Herbert ...

  9. Ruth, Nevada - Wikipedia

    en.wikipedia.org/wiki/Ruth,_Nevada

    Ruth is a census-designated place (CDP) in White Pine County, Nevada, United States.Founded in 1903, it had a population of 440 at the 2010 census. [3]Ruth was built as a company town for the adjacent Robinson Mine, a large open-pit copper mine, which is still in operation as of 2022.