Its Nuton bioleaching technology, developed in partnership with Arizona Sonoran Copper (TSX: ASCU), aims to recover copper from tailings. The Resolution copper mine is among several projects ...

This beautiful high-desert creek has been a dumping ground for copper mines for far too long.” Queen Creek runs north and west of Oak Flat through rugged, spire-filled Queen Creek Canyon toward ...

Environmental and community groups have appealed the Arizona Department of Environmental Quality’s decision to grant an air ...

Opponents of the Copper World mine are ... In issuing the permit Jan. 2, the Arizona Department of Environmental Quality said its computer modeling found the mine’s emissions would not trigger ...