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Mponeng is an ultra-deep tabular gold mine in South Africa in the Witwatersrand Basin of the Gauteng Province. [1] Previously known as Western Deep Levels No1 Shaft, the mine began operations in 1986. [2] It is one of the most substantial gold mines in the world in terms of production and magnitude, reaching over 4 kilometres (2.5 mi) below the ...
The Homestake Mine was a deep underground gold mine (8,000 feet or 2,438 m) located in Lead, South Dakota. Until it closed in 2002 it was the largest and deepest gold mine in the Western Hemisphere . The mine produced more than forty million troy ounces (43,900,000 oz; 1,240,000 kg) of gold during its lifetime. [1]
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 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 an open pit operation. The gold is recovered from the ore by heap leaching. CC&V's heap leach pad is one of the biggest in the world. [10] The mine has a visitor center [11] with displays about modern mining procedures, historical photos, ore and core samples, and mineral uses. [12]
Super Pit. The Fimiston Open Pit, colloquially known as the Super Pit, is an open-pit mine in Australia. It was Australia's largest open cut gold mine until 2016, when it was surpassed by the Newmont Boddington gold mine, also in Western Australia. The Super Pit is located off the Goldfields Highway on the south-east edge of Kalgoorlie, Western ...
The Bingham Canyon Mine, more commonly known as Kennecott Copper Mine among locals, [3] is an open-pit mining operation extracting a large porphyry copper deposit southwest of Salt Lake City, Utah, in the Oquirrh Mountains. The mine is the largest human-made excavation, and deepest open-pit mine in the world, [4][5] which is considered to have ...
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]