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The mine is the largest human-made excavation, and deepest open-pit mine in the world, [4] [5] which is considered to have produced more copper than any other mine in history – more than 19,000,000 short tons (17,000,000 long tons; 17,000,000 t). [5] The mine is owned by Rio Tinto Group, a British-Australian multinational corporation.
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.
Hranice Abyss. Hranice Abyss (Czech: Hranická propast) is the deepest flooded pit cave in the world. It is a karst sinkhole near the town of Hranice, Czech Republic.The greatest confirmed depth is 519.5 m (1,704 ft), of which 450 m (1,476 ft) is underwater.
The Xiaozhai Tiankeng (小寨天坑), also known as the Xiaozhai Heavenly Pit, is the world's deepest sinkhole. [1] It is located in Fengjie County of Chongqing Municipality in China . Dimensions
The Big Hole – a former diamond mine in Kimberley, dug to 240 m (790 ft) between 1871 and 1914, making it the deepest hand-excavated pit in the world. Now a museum. The Jagersfontein Mine – operating between 1888 and 1971. This was hand-excavated to 201 m (660 ft) by 1911, and the hand-dug pit was sightly larger than the Big Hole.
The World's Deepest Hole – Alaska Science Forum – July 1985; The Deepest Hole 20 June 2006; Kola Superdeep – Scientific research results and experiences by PhD A. Osadchikh 1984 (in Russian) Photo report on a trip to the Kola superdeep well in 2017. Many photos of the current state. (in Russian)
The floor of the cave is a 333 m (1,093 ft) freefall drop from the lowest side of the opening, with a 370 m (1,210 ft) drop from the highest side, [2] making it the largest known cave shaft in the world, the second deepest pit in Mexico and perhaps the 11th deepest sheer drop in the world. [3] [a]
Chuquicamata (/ tʃ uː k iː k ə ˈ m ɑː t ə / choo-kee-kə-MAH-tə; referred to as Chuqui for short) is the largest open pit copper mine in terms of excavated volume in the world. [citation needed] It is located in the north of Chile, just outside Calama, at 2,850 m (9,350 ft) above sea level.