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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 is about 2,500 cubic ...
Asteroid mining is the hypothetical extraction of materials from asteroids and other minor planets, including near-Earth objects. [1] Notable asteroid mining challenges include the high cost of spaceflight, unreliable identification of asteroids which are suitable for mining, and the challenges of extracting usable material in a space environment.
The Fort Knox Gold Mine is an open pit gold mine, 9 mi (14 km) east of Fox in the Fairbanks mining district of Alaska. It is owned and operated by Toronto -based Kinross Gold . Originally staked in 1913, after very minor mining at the location the property sat idle until being restaked in 1980.
In 1970, South Africa produced 995 tonnes or 32 million ounces of gold, two-thirds of the world's production of 47.5 million ounces. [2] Production figures are for primary mine production. In the US, for example, for the year 2011, secondary sources (new and old scrap) exceeded primary production. [3]
Gold mining can significantly alter the natural environment. Gold mining activities in tropical forests are increasingly causing deforestation along rivers and in remote areas rich in biodiversity. [77] [78] Mining has increased rainforest loss up to 70km beyond lease boundaries, causing nearly 11,670 km 2 of deforestation between 2005 to 2015 ...
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Macetown is an historic gold mining settlement in the Otago region of the South Island of New Zealand. It is now uninhabited but has become a tourist attraction. Access to the town is via an unsealed road that heads up the steep-sided Arrow gorge. This can be traversed on foot or by mountain bike, horse or four-wheel-drive vehicles.
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