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The biggest earth hole (34 photos)
Kimberlite pipe "Big Hole", South Africa. The largest of the excavated "by hand" - 1097 meters in depth. Moved to the surface more than 22 million. M. Breed and produced 3 tons of diamonds. Development completed in 1914.
Kimberlite pipe "Mir» (Mir diamond pipe), Yakutia. Mined diamonds to the present. 1200 meters outer diameter and 525 meters depth.
Quarry Kennecott Bingham Canyon Mine, Utah. The largest operating mine in the world - the development of copper began in 1863 and is still. About a kilometer deep and 3.5 in width.
4. Quarry "Dyavik» (Diavik), Canada. Mined diamonds. The quarry is located on the islands and has the infrastructure to the airport capable of receiving Boeing passenger.
Great Blue Hole, Belize. The width of 400 meters, the depth of 145 - 160 meters. The point of attraction of professional divers from around the world.
Drain hole in the reservoir of the dam Monticello. Used to reset the excess water in the reservoir tank. A sort of safety valve
Karst collapse in Guatemala. Caused by underground water and rainfall. During the formation of the failure of several deaths and destroyed a dozen homes
