bucyrus 8200 77 cubic yd 125 ton drag line, located in Center ND removes first 100-200 feet of top soil to unearth the coal, the coal creates steam and powers .\rbr\rbrThis is currently the Worlds Biggest operating Dragline and its operating at the Peak Downs coalmine in Queensland. It is a Bucyrus 2570WS and weighs a .\rbr\rbrMega Machines in the World mega truck longest biggest digging machine megatructures.\rbr\rbrThe Largest Walking Dragline Compilation.