Sand, gravel, stone, coal, and many of the metal and nonmetal mines are likely to be of the open pit type. The classic open-pit mine is impressively deep and far wider at the top than at the bottom.

Rio Tinto Kennecott, the world's largest open-pit mine, is now open for visits for the 2025 season. Operating since 1903, this Utah-based open-pit mine has produced over 19 million tons of copper.

A plan to extract coal through open-pit mining in Phulbari and the northern part of Barapukuria coal mine area is being revived by the government, despite strong opposition by locals and ...

CANBERRA, Australia — Australia for the first time has rejected a coal mining application based on environmental law, with the government minister citing the open-pit mine’s potential harm to ...

Mine surveying has a long history of having an integral role in the development of mining operations. Its application is essential prior to the breaking of ground and the commencement of mining ...

In Sanski Most, Bosnia and Herzegovina, an open-pit brown coal mine is sparking protests among locals. Farmers say the mine threatens their livelihoods and are leading the fight to protect their land.

Ongoing extraction inside the Continental Pit operated by Montana Resources — an open pit mine in Butte ... are studying the potential for mining rare earths in coal waste, including fly ...

New open-pit coal mines in the foothills will be banned and steelmaking coal mines permitted under policies the Alberta government unveiled Friday. But the Alberta Coal Industry Modernization ...

Alberta has announced plans to draft new rules that will see mountaintop removal mining and open-pit coal developments prohibited on the eastern slopes of the Rocky Mountains. In a statement on ...