"Taconite Environmental aspects Superior, Lake." . . "Iron mines and mining Environmental aspects Superior, Lake." . . "Reserve Mining Company." . . "Water Pollution Law and legislation." . . "Iron mines and mining Environmental aspects." . . "Minnesota." . . "United States." . . "Taconite Environmental aspects." . . "Lake Superior." . . "Superior pollutor a saga of the struggle to stop pollution of the largest fresh water lake in the world by its most egregious polluter--the Reserve Mining Company"@en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "Superior pollutor : a saga of the struggle to stop pollution of the largest fresh water lake in the world by its most egregious polluter--the Reserve Mining Company" . "Water Pollution Law and legislation Minnesota." . . . .