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The worlds deepest, biggest and deadliest open pit mines | LosAposBingham Canyon Mine, located near Salt Lake City, is the world's deepest man-made open pit excavation. The mine is 2.75 miles (4,5km) across and 0.75 mile (1,2km) deep. Since mining operations started in 1906, Bingham Canyon Mine has been the granddaddy of all copper mines. When you're talking about the actual.biggest quarry in the world africa crusherasia,South Africa's Biggest Open Pit Mines | KH PlantIt requires large-scale equipment, including shovels and drills. Motor graders also play a role, maintaining haulage roads so that both equipment and mined material can be transported to and from the mines. South Africa is home to some of the biggest open pit mines in the world, including the well-known Kimberley Mine,.[PHOTOS] Top 10 Largest Open Pit Mines in the World - Mining GlobalSep 9, 2015 . Located in the vast landscape of the Atacama Desert in Chile, the Escondida Copper Mine is one of the largest open pit mines in the world. Consisting of two . Often referred to as “The Big Hole,” the De Beers-owned Kimberly Diamond Mine in South Africa is the largest open-pit mine excavated by hand.