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aerial photograph of Cleveland Cliffs Burns Harbor steelmaking complex, Portage, Indiana previously known as AcelorMittal steelmaking complex, Indiana Harbor, Indiana, it is one of the largest fully integrated steel mills in North America
aerial photograph of Cleveland Cliffs Burns Harbor steelmaking complex, Portage, Indiana previously known as AcelorMittal steelmaking complex, Indiana Harbor, Indiana, it is one of the largest fully integrated steel mills in North America