A planned copper mine could alter Tucson's natural skyline, but in the 'Copper State,' mining interests still hold sway.

Critical state funding for a Copperwood Mine copper mining project in Gogebic County is nearing approval. The Copperwood ...

This story was first published by Grist . At a laboratory in Newark, New Jersey, a gray liquid swirls vigorously inside a ...

The House approved the Critical Mineral Consistency Act in November, which would add copper to the U.S. Geological Survey ...

Copper that is economical to mine is found in rocks known as ores ... And the current standard procedure for extracting the ...

Copper that is economical to mine is found in rocks known as ores ... the metal from the majority of ores results in a lot of pollution. About 80 percent of the copper mined today comes from ...

Copper that is economical to mine is found in rocks known as ores ... And the current standard procedure for extracting the ...

This is the second story in a three-part series about the proposed expansion of the Copper Mountain Mine. Part one can be found here.

This is the third story in a three-part series about the proposed expansion of the Copper Mountain Mine. Part one can be found here, and part two here. Madison Terbasket grew up learning about syilx ...

The Twin Metals copper, nickel project within the BWCA watershed is among the mining operations ramping as opponents eye court challenges.

A decision on whether to reissue a permit to mine for the company vying to open Minnesota’s first copper-nickel mine is on hold after the company behind it said it is studying potential changes to ...