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  2. Roy Hill railway - Wikipedia

    en.wikipedia.org/wiki/Roy_Hill_railway

    The route change was necessary because Roy Hill Infrastructure was unable to obtain permission from third-party mining lease-holders to construct the railway as originally approved. [ 3 ] Construction of the railway on Crown land required the passing of the Railway (Roy Hill Infrastructure Pty Ltd) Agreement Act 2010 as an amendment to the ...

  3. Woodsmith Mine Tunnel - Wikipedia

    en.wikipedia.org/wiki/Woodsmith_Mine_Tunnel

    The TBMs will process through the route tunnelling at the front of the machine, whilst the middle and rear sections add concrete lining to the tunnel walls. [29] The first TBM, Stella Rose, weighs 1,800 tonnes (2,000 tons) and is 738 feet (225 m) long. The concrete segments are 4 feet 11 inches (1.5 m) in length and a special concreting plant ...

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

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

    The Hull–Rust–Mahoning Open Pit Iron Mine in Hibbing, Minnesota, United States, is the largest operating open-pit iron mine in Minnesota. The pit stretches more than three miles (5 km) long, two miles (3 km) wide, and 535 feet (163 m) deep. [2]

  5. Mine railway - Wikipedia

    en.wikipedia.org/wiki/Mine_railway

    Preserved typical mine train at the Museu de Les Mines d' Eschucha, Eschucha, Spain. A mine railway (or mine railroad, U.S.), sometimes pit railway, is a railway constructed to carry materials and workers in and out of a mine. [1]

  6. List of deepest mines - Wikipedia

    en.wikipedia.org/wiki/List_of_deepest_mines

    This list of deepest mines includes operational and non-operational mines that are at least 2,224 m (7,297 ft), which is the depth of Krubera Cave, the deepest known natural cave in the world.

  7. Mesabi Range - Wikipedia

    en.wikipedia.org/wiki/Mesabi_Range

    The Mesabi Iron Range is a mining district and mountain range in northeastern Minnesota following an elongate trend containing large deposits of iron ore. It is the largest of four major iron ranges in the region collectively known as the Iron Range of Minnesota. First described in 1866, it is the chief iron ore mining district in the United ...

  8. Robinson Mine - Wikipedia

    en.wikipedia.org/wiki/Robinson_Mine

    Under Daniel C. Jackling, in 1905 Nevada Consolidated Copper Corporation (Nevada Con) began copper mining in the Veteran Mine. "The resulting mine was an impressive open-pit and satellite cave." [7] During World War I and until the Great Depression, Nevada Con employed some 1000 - 1200 men in their mines. Mining ended around 1949.

  9. Bagger 293 - Wikipedia

    en.wikipedia.org/wiki/Bagger_293

    It is 225 metres (738 feet) long (same as Bagger 287), weighs 14,200 tonnes (31,300,000 lb), and requires five people to operate. It is powered by an external power source providing 16.56 megawatts. The bucket-wheel itself is over 21.3 metres (70 feet) in diameter with 18 buckets, each of which can hold over 15 cubic metres (530 cubic feet) of ...