Twin Metals project goes dry, decides against tailings dam

Twin Metals Minnesota says it will now opt for ‘dry stacking’ of tailings for its proposed underground copper-nickel mine near the Boundary Waters Canoe Area Wilderness in northern Minnesota, US

Twin Metals project goes dry, decides against tailings dam Twin Metals project goes dry, decides against tailings dam Twin Metals project goes dry, decides against tailings dam Twin Metals project goes dry, decides against tailings dam Twin Metals project goes dry, decides against tailings dam

The Twin Metals project is focused on designing, constructing and operating an underground copper, nickel, platinum, palladium, gold and silver mine

In May, Twin Metals, a wholly owned subsidiary of Chilean mining group Antofagasta, had two of its federal mineral leases renewed by the US Bureau of Land Management, following their reinstatement