Two Alberta environmental groups are praising Premier Danielle Smith’s comments on banning open-pit mining, just days after ...

Vale's new open-pit project at the historic Stobie site will ... ramping up to 1.5 million tons by 2025. Additionally, the mine will yield valuable byproducts, including cobalt and precious ...

We just need to do it a little faster." Rio Tinto’s Kennecott mine, just west of Salt Lake City, is the largest open-pit mine in the world, spanning 2.5 miles across and about 4,000 feet deep.

The scars of extraction are hard to miss at the site of the former Colosseum gold and silver mine, where a fenced-off open pit is flanked by the untouched Clark Mountain due south. Mother Nature ...

About 200 activists demonstrated this Sunday in the capital of Panama against the possible reopening of the largest open-pit mine in Central America, owned by a Canadian company, which was shut down ...

A group that opposed a sand mine ultimately nixed by the NDP government says the environmental assessment of an open pit mine that has been approved near Hollow Water First Nation is “shoddy.” ...

As the provincial government finalizes details of new rules for coal mining in Alberta’s mountains and foothills, one company is asking officials to pick a definition of open pit mining that won ...