Bingham Canyon Mine, The Largest Open-Pit Mines in the ...- bingham world mining company , · Bingham Canyon Mine, The Largest Open-Pit Mines in the World The Bingham Canyon Mine, also known as the Kennecott Copper Mine, is an open-pit mining operatio...Rio Tinto lifts force majeure at Kennecott copper mine ...World’s second largest mining company Rio Tinto (ASX, LON:RIO) has lifted force majeure on shipments of refined copper from its Kennecott unit in the US, 79 days after adopting the measure. Rio ...