The world's richest mine projects revealed: 1) Grasberg gold and copper mine, Indonesia 2) Bingham Canyon copper mine, US 3) Black Thunder coal mine, US 4) Goro Nickel project, New Caledonia 5) Chuquicamata copper mine, Chile 6) Jwaneng mine, Botswana More interesting images can be found below: http://www.mining-technology.com/features/featurebig-is-beautiful-the-worlds-richest-mine-projects/