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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.
Number Name of mine Production (Location Citations 1: Olimpiada mine: 1,998,000 Russia [1]2: Grasberg mine: 1,798,000 Indonesia [2]3: Muruntau mine: 1,700,000 Uzbekistan
The longest conveyor is 3 miles (4.8 km) long. [35] As of 2010, Kennecott Utah Copper was the second largest copper producer in the US, and provided about 13-18% percent of the U.S.'s copper needs. [32] [33] It is one of the top producing copper mines in the world, with production at more than 18.7 million short tons (16.7 million long tons; 17 ...
Ore undergoes primary crushing at the mine, before being delivered by ore passes to the mill complex for further crushing, grinding and flotation. Grasberg's milling and concentrating complex is the largest in the world, with four crushers and two giant semi-autogenous grinding (SAG) units processing a daily average of 240,000 tonnes of ore in ...
The Rössing uranium mine in Namibia is the longest-running and one of the largest open pit uranium mines in the world. It is located in the Namib Desert near the town of Arandis, 70 kilometres from the coastal town of Swakopmund. Discovered in 1928, the Rössing mine started operations in 1976.
In the beginning, surface mining was used, but the mine has been mined with the sublevel caving mining method since the 1960s. In 1985 reserves for the Kiruna Mine were 1,800 million tonnes grading 60–65% iron and 0.2% phosphorus. [26] [1] As of 2018 the Kiruna Mine had Proven and Probable Reserves of 683 million tonnes grading 43.8% iron. [27]
Underground portion of Grasberg Mine in Central Papua visited by President of Indonesia Joko Widodo. Freeport is the world's largest producer of molybdenum, and one of the largest producers of copper. [47] In 2019, 79% of its revenues were from the sale of copper, 11% were from the sale of gold, and 8% were from the sale of molybdenum. [47]
South Africa has the world's deepest hard rock gold mine up to 3,900 metres (12,800 ft) underground. At such depths, the heat is unbearable for humans, and air conditioning is required for the safety of the workers. The first such mine to receive air conditioning was Robinson Deep, at that time the deepest mine in the world for any mineral. [39]