Another dam, also used to store the muddy mining detritus known as tailings and co-owned by Vale and BHP Group, had collapsed in 2015, killing 19 people and wreaking massive environmental damage.

Mining giant Vale failed to report problems at a massive tailings dam in Brazil that could have averted its collapse, killing hundreds, a government agency said on Tuesday. The Jan 25 dam breach ...

The tailings dam at the open-pit gold and copper mine in B.C.'s Cariboo region gave way in August 2014, spilling mine waste into nearby waterways and causing widespread environmental damage. Two ...

Six months after being deluged by a tide of toxic red sludge, towns downstream of the failed alumina tailings dam near Ajka, Hungary remain ruined and largely deserted, with residents and former ...

VICTORIA - The British Columbia government is allowing the height of the Mount Polley tailings dam to be raised an extra four metres, a decade after a similar storage site burst in one of the ...

2:11 Mt. Polley mine reopens after tailings pond spill The British Columbia government is allowing the height of the Mount Polley tailings dam to be raised an extra four metres, a decade after a ...