Great Lakes Limestone and Iron Ore Trade Down in August

By GLSR Staff  |  Cargo & Commodities, Latest News

Shipments of limestone on the Great Lakes totaled 3.6 million tons in August, a decrease of 3% from 2024. Limestone cargos were also below the month’s 5-year average by 4.4%.

According to the Lake Carriers’ Association, loadings from U.S. quarries totaled 2.95 million tons, an increase of 1.8% compared to a year ago. Shipments from Canadian quarries totaled 647,403 tons, representing a 20% decrease.

Year-to-date, Great Lakes limestone trade stands at 16.3 million tons, a 4.6% decrease compared to last year. Loadings from Michigan and Ohio quarries total 13.4 million tons, a decrease of 2.1%. Shipments from Ontario quarries total 2.9 million tons, a 14.3% decrease compared to 2024.

The Lake Carriers’ Association also reports that iron ore shipments on the Great Lakes in August totaled 5 million tons, a 9.1% decrease compared to last year. Shipments were below the month’s 5-year average by 2%.

American Integrity

Year-to-date, the iron ore trade totals 26.7 million tons, a decrease of 13.9% compared to the same point in 2024.

Through August, iron shipments are 6.4% below their 5-year average for eight months of the year.

TAGS: , ,

Horizons: Navigating Tariffs and Trade Winds

The Great Lakes-St. Lawrence Seaway system, a vital artery for North American commerce, faces turbulent waters amid escalating trade tensions. As 2026 progresses, tariffs imposed by the U.S. administration under... Read More

AGLPA Launches Study to Assess Increasing Trade Between the Great Lakes and Inland Waterways

A study is underway to assess the economic opportunities and transportation benefits of increasing maritime cargo shipments between the Great Lakes and U.S. inland waterways.  The American Great Lakes Ports Association (AGLPA), Ports... Read More