Black Butte Copper Project

A district court is allowing Tintina Montana Inc. to complete phase one construction of its Black Butte Copper Project under an existing permit, despite a recent ruling showing environmental violations.

Conservation groups want a Montana court to cancel the approval of the long-disputed Black Butte copper mine, saying it would pollute a tributary of the…

Operators of a central Montana copper mine will be required to post a $4.6 million bond before construction can begin, according to state officials. The…