The company was an important mine operator in northern Idaho for many decades and through the second half of the 20th century it diversified and operated mines in a number of different countries including Chile, Argentina and New Zealand.
The company was an important mine operator in northern Idaho for many decades and sold its remaining assets in the region in July, 2006. In the second half of the 20th century Coeur diversified its operations with mines in a number of different countries including Chile, Argentina and New Zealand.