Great Lakes Limestone and Iron Ore Trade Down in May
Loadings from U.S. quarries decreased 6.9% compared to 2024 to 2.9 million tons. Shipments from Canadian quarries totaled 688,697 tons, a decrease of 6.2%.
Year-to-date, limestone trade on the Great Lakes stands at 5.6 million tons, down 13.2% from one year ago.
Shipments of iron ore from U.S. Great Lakes ports were also down in May. The Lakes Carriers’ Association reported that iron ore shipments from U.S. Great Lakes ports totaled 5 million tons in May, a decrease of 7.7% compared to 2024. Shipments were 3.1% below the month’s 5-year average.

Year-to-date, shipments of iron ore stand at 11.7 million tons, down 18.6% compared to one year ago.
Iron Ore and Limestone Trade Up in July
The Lake Carriers’ Association (LCA) reports that shipments of iron ore on the Great Lakes totaled 5.1 million tons in July, an increase of less than 1% compared to 2025. Iron... Read More
Cargo Volumes Down Despite Increased Vessel Activity on the St. Lawrence Seaway
Cargo volumes on the St. Lawrence Seaway remained below last year’s pace through June, although vessel traffic continued to increase, reflecting a mixed start to the 2026 navigation season. According... Read More

