The deepest mines in the world are the Mponeng and TauTona (Western Deep Levels) gold mines in the Witwatersrand region of South Africa, which are currently working at depths exceeding . The deepest inactive mine in Asia is the Kolar in the Karnataka region of India. Closed in 2001, the main shaft had reached a depth of .This region is also the location of the harshest conditions for hard rock mining, with air temperatures of up to . However, massive refrigeration plants are used to bring the temperature down to around . The deepest inactive hard rock mine in North America is the Empire mine in Grass Valley California. Closed in 1956 the main shaft had reached an incline depth of . The combined length of all shafts is . The deepest active hard rock mine in North America is Kidd Mine in Canada, which mines zinc and copper in Timmins, Ontario. At the maximum depth of this mine is the deepest base metal mine in the world, and its low surface elevation means that the bottom of the mine is the deepest accessible non-marine point on earth. LaRonde's Penna shaft (#3 shaft) is believed to be the deepest single lift shaft in the Western Hemisphere. The new #4 shaft bottoms out at down. LaRonde mine expansion was completed in June 2016 at the depth of , the deepest longhole open stopes in the world. The deepest active mine in Eurasia and in Asia is Skalisty Mine of Nornickel, located in Talnakh. In September 2018 it reaches depth of below surface. The deepest mine in Europe is the 16th shaft of the uranium mines in Příbram, Czech Republic at . The deepest hard rock mines in Australia are the copper and zinc lead mines in Mount Isa, Queensland at . The deepest platinum-palladium mines in the world are on the Merensky Reef, in South Africa, with a resource of 203 million troy ounces, currently worked to a depth of approximately . The deepest borehole is the Kola Superdeep Borehole in Murmansk Oblast, Russia. At , it is the deepest artificial extreme point of Earth.
The deepest mines in the world are the Mponeng and TauTona (Western Deep Levels) gold mines in the Witwatersrand region of South Africa which are currently working at depths exceeding . The deepest inactive mine in Asia is the Kolar in the Karnataka region of India. Closed in 2001, the main shaft had reached a depth of .This region is also the location of the harshest conditions for hard rock mining, with air temperatures of up to . However, massive refrigeration plants are used to bring the temperature down to around  The deepest inactive hard rock mine in North America is the Empire mine in Grass Valley California. Closed in 1956 the main shaft had reached an incline depth of . The combined length of all shafts is . The deepest active hard rock mine in North America is Kidd Mine in Canada, which mines zinc and copper in Timmins, Ontario. At, the maximum depth of this mine is the deepest base metal mine in the world, and its low surface elevation means that the bottom of the mine is the deepest accessible non-marine point on earth. LaRonde's Penna shaft (#3 shaft) is believed to be the deepest single lift shaft in the Western Hemisphere The new #4 shaft bottoms out at down. LaRonde mine expansion was completed in June 2016 at the depth of , the deepest longhole open stopes in the world. The deepest active mine in Eurasia and in Asia is Skalisty Mine of Nornickel, located in Talnakh. In September 2018 it reaches depth of below surface. The deepest mine in Europe is the 16th shaft of the uranium mines in Příbram, Czech Republic at . The deepest hard rock mines in Australia are the copper and zinc lead mines .in Mount Isa, Queensland at . The deepest platinum-palladium mines in the world are on the Merensky Reef, in South Africa, with a resource of 203 million troy ounces, currently worked to a depth of approximately . The deepest borehole is the Kola Superdeep Borehole in Murmansk Oblast, Russia. At , it is the deepest artificial extrem.e point of Earth.