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2. 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. The depth measurements in this list represent the difference in elevation from the entrance of the mine to the deepest excavated point.

3. Mponeng Gold Mine - Wikipedia

   en.wikipedia.org/wiki/Mponeng_Gold_Mine

   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 ...

4. Homestake Mine (South Dakota) - Wikipedia

   en.wikipedia.org/wiki/Homestake_Mine_(South_Dakota)

   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 ...

5. List of gold mines - Wikipedia

   en.wikipedia.org/wiki/List_of_gold_mines

   The following are lists of gold mines and are subsidiary to the list of mines article and lists working, defunct and planned mines that have substantial gold output, organized by country. North America

6. Deep level underground - Wikipedia

   en.wikipedia.org/wiki/Deep_level_underground

   The deepest mines in the world are the TauTona (Western Deep Levels) and Savuka gold mines in the Witwatersrand region of South Africa, which are currently working at depths exceeding 3,900 m (12,800 ft). [5] There are plans to extend Mponeng mine, a sister mine to TauTona, down to 4,500 m (14,800 ft) in the coming years. [citation needed]

7. China is drilling some of the world’s deepest holes in hunt ...

   www.aol.com/news/china-drilling-world-deepest...

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8. List of gold mines in the United States - Wikipedia

   en.wikipedia.org/wiki/List_of_gold_mines_in_the...

   This list of gold mines in the United States is subsidiary to the list of mines article and lists working, defunct and future mines in the country and is organised by the primary mineral output. For practical purposes stone, marble and other quarries may be included in this list.

9. How Drilling the World’s Deepest Holes Could Give Us ...

   www.aol.com/lifestyle/drilling-world-deepest...

   The World’s Deepest Holes Can Fight Climate Change ThomasVogel - Getty Images Tapping into the energy content of heat stored underground would meet the world’s energy needs.