2021 Season Summary: Iron ore leads tonnage upsurge
January 31, 2022
DULUTH, Minn. — Rebounding from pandemic-induced lows in 2020, total maritime tonnage through the Port of Duluth-Superior climbed to 32.9 million short tons in 2021. This total represented a 27 percent season-over-season increase and a 2.3 percent improvement over the five-season average. Iron ore, the port’s leading cargo by tonnage, led the upswing. The total… Read more »