The justices on Monday rejected an appeal from an outdoor sporting club that claims the mine will spoil the environment.
The Huron Mountain Club has been challenging the Eagle Mine in state and federal courts. The club owns 19,000 acres, including land that comes within 3.3 miles of the mine. Some mining will take place under the Salmon Trout River and area wetlands.
The 6th U.S. Circuit Court of Appeals had turned aside the club's arguments that the mine needs federal permits.
—By The Associated Press