Mining resumed in the 1970s, when Earth Resources Corporation established an open-pit mine, into the late 1990s. Continue reading If approved, the future DeLamar mine would also be an open-pit mine.

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.

President Rodrigo Chaves announced Wednesday that his government plans to re-legalize open-pit mining. The practice, banned in 2010, has long been at odds with Costa Rica’s reputation as a global ...

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 ...

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 ...