Great Lakes limestone trade up 4.4 percent in August

(CLEVELAND) — Shipments of limestone on the Great Lakes totaled 4 million tons in August, an increase of 4.4 percent from a year ago. Limestone cargoes were above the month’s five-year average by 3.7 percent.

Loadings from U.S. quarries totaled 3.3 million tons, an increase of 5 percent compared to 2022. Shipments from Canadian quarries totaled 754,178 tons, an increase of 1.9 percent.

U.S. ports: Calcite, Mich.; Cedarville, Mich.; Drummond Island, Mich.; Marblehead, Ohio; Port Inland, Mich,; and Presque Isle, Mich. Canadian ports: Bruce Mines, Manitoulin Island, Port Colborne (from August 2017 onward) and Smelter Bay (all Ontario).

Year to date, the Lakes limestone trade stands at 16.2 million tons, a decrease of 7.4 percent compared to a year ago. Loadings from Michigan and Ohio quarries total 13.1 million tons, a decrease of 5.1 percent. Shipments from Ontario quarries total 3.1 million tons, a decrease of 15.6 percent.

About the Lake Carriers’ Association

Since 1880, the LCA has represented the U.S.-flag Great Lakes fleet, which today can move more than 90 million tons of cargoes 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

Lake Carriers’ Association photo
By Professional Mariner Staff