Great Lakes Limestone Trade Up 6.5% in June
Shipments of limestone on the Great Lakes totaled 3.5 million tons in June, an increase of 6.5% from 2024, according to the Lake Carriers’ Association. This June’s loadings were below the month’s 5-year average by 1.9%.
Loadings out of U.S. quarries totaled 2.9 million tons, an increase of 12.2% compared to last year. Shipments from Canadian quarries totaled 639,301 tons, a decrease of 13.4%.
Year-to-date, the Lakes limestone trade stands at 9.1 million tons, a decrease of 6.5% compared to a year ago. Loadings from Michigan and Ohio quarries decreased by 4% from 2024 to 7.5 million tons. Shipments from Ontario quarries total 1.6 million tons, a decrease of 16.5%.
Meanwhile, shipments of iron ore on the Great Lakes totaled 4.9 million tons in June, a decrease of 9.6% from 2024. Shipments were 1.2% below the month’s 5-year average.

Year-to-date the iron ore trade stands at 16.6 million tons, a decrease of 16.1% compared to the previous year’s total. Iron shipments are below their 5-year average by 8.9% for the first half of the year.
Feature image: Wilfred Sikes/courtesy of Lake Carriers’ Association
Montreal Port Authority Receives Federal Authorization to Advance Contrecœur Expansion
The Montreal Port Authority (MPA) has received authorization from Fisheries and Oceans Canada to expand its port facilities in Contrecœur and continue construction of the new container terminal. Issued under the Fisheries Act and... Read More
General Cargo Down, Grain Trade Up on the Great Lakes in 2025
Preliminary traffic results released by the St. Lawrence Seaway Management Corporation (SLSMC) show 37 million metric tons of cargo transited the Great Lakes-St. Lawrence Seaway system during the 2025 navigation... Read More