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The Kiruna mine is the largest and most modern underground iron ore mine in the world. [1] [unreliable source?] The mine is located in Kiruna in Norrbotten County, Lapland, Sweden. [1] The mine is owned by Luossavaara-Kiirunavaara AB (LKAB), a large Swedish mining company. In 2018 the mine produced 26.9 million tonnes of iron ore. [2]
With over 3,000 kilometres (1,900 mi) of underground drifts, [3] El Teniente is reportedly "the world's biggest underground copper mine", [4] [5] and is the largest of Codelco's operations. [6] Typically more than 5,000 workers were involved in production. [7] Since 2011, a structural project called New Mine Level (NML) has been underway at El ...
It was developed by late Kansas City Chiefs owner Lamar Hunt via Hunt Midwest Real Estate Development, Inc., with the trademarked phrase World's Largest Underground Business Complex. Dug into the Bethany Falls limestone mine, SubTropolis is up to 160 feet (49 m) beneath the surface.
This list of deepest mines includes operational and non-operational mines that are at least 2,212 m (7,257 ft), which is the depth of Veryovkina Cave, the deepest known natural cave in the world. The depth measurements in this list represent the difference in elevation from the entrance of the mine to the deepest excavated point.
The Chiatura mine complex which includes four underground mines and three open pit quarries has an annual production capacity of 1.18 million tonnes of manganese ore and 400,000 tonnes of manganese concentrates. The mine complex transports its manganese ore by rail to the ferroalloy plant located in Zestaponi. [1]
The workings include a large open pit mine 2.4 kilometres (1.5 mi) wide at the surface completed in 2019, three operating underground mines (Grasberg Block Cave, Deep Mill Level Zone and Big Gossan) and four concentrators. The mine is a high-volume, low-cost underground mining operation, producing and milling more than 72 million tonnes of ore ...
The mine is more than 525 meters (1,722 ft) deep (4th in the world), has a diameter of 1,200 m (3,900 ft), [1] and is one of the largest excavated holes in the world. Open-pit mining began in 1957 and was discontinued in 2001. Since 2009, it has been active as an underground diamond mine. [2]
The Goderich salt mine has a production capacity of 9 million tons per year, and produces 7,250,000 tons per year, while the evaporation plants in Goderich, Unity, and Amherst have the capacity to produce a total of more than 470,000 tons. [7] It is the largest underground salt mine in the world. [8]