Shipments of limestone on the Great Lakes totaled 3.2 million tons in October, a decrease of 3.8 percent compared to 2024. Limestone cargos were also below the month’s 5-year average by 10.7 percent.Loadings from U.S. quarries totaled 2.6 million tons, a 6.1 percent reduction.<p><p>https://www.marinelink.com/news/great-lakes-limestone-trade-down-october-532226</p></p>