Great Lakes Limestone Shipments Down in June

Shipments of limestone on the Great Lakes totaled 3.1 million tons in June, a decrease of 17.6% from a year ago, according to the Lake Carriers’ Association. This June’s loadings were also below the month’s five-year average by 17.4%.

Loadings out of U.S. quarries totaled 2.5 million tons, a decrease of 15.2% compared to last year. Shipments from Canadian quarries totaled 610,702 tons, a decrease of 26.4%.

Year-to-date the Lakes limestone trade stands at nearly 8.1 million tons, a decrease of 16.9% compared to 2022. Loadings from Michigan and Ohio quarries decreased by 15.8% from a year ago. Shipments from Ontario quarries total 1.6 million tons, a decrease of 21.2%.

Since 1880, the Lake Carriers’ Association has represented the U.S.-flag Great Lakes fleet, which today can move more than 90 million tons of cargos annually that are the foundation of American industry, infrastructure, and power: iron ore, stone, coal, cement and other dry bulk materials such as grain, salt, and sand. More information is available at

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