the bingham canyon mine, more commonly known as kennecott copper mine among locals, is an open-pit mining operation extracting a large porphyry copper deposit southwest of salt lake city, utah, in the oquirrh mountains. the mine is the largest man-made excavation in the world and is considered to have produced more.
molybdenum is mined as a principal ore and is also recovered as a byproduct of copper and tungsten mining. the world's production of molybdenum was 250,000 tonnes in 2011, the largest producers being china 94,000 t , the united states 64,000 t , chile 38,000 t , peru 18,000 t and mexico 12,000 t . the total reserves are estimated at 10 .
today, some cobalt is produced specifically from one of a number of metallic-lustered ores, such as cobaltite coass . the element is, however, more usually produced as a by-product of copper and nickel mining. the copper belt in the democratic republic of the congo drc and zambia yields most of the global
falun mine was a mine in falun, sweden, that operated for a millennium from the 10th century to 1992. it produced as much as two thirds of europe's copper needs and helped fund many of sweden's wars in the 17th century. technological developments at the mine had a profound influence on mining globally for two centuries. the mine is now a museum and in 2001 was designated a unesco world heritage site.
the element is, however, more usually produced as a by-product of copper and nickel mining. the copper belt in the democratic republic of the congo drc and zambia yields most of the global cobalt production. world production in 2016 was 116,000 tonnes according to natural resources canada , and the drc alone accounted for more than 50%.