Limestone shipments on the Great Lakes totaled 26.6 million tons in 2025, a decrease of 5.9 percent compared to the previous year. 2025’s loadings were below the trade’s 5-year average by 6.7 percent.Shipments from U.S. quarries decreased 5 percent from 2024 to 21.7 million tons. Loadings from U.S.<p><p>https://www.marinelink.com/news/great-lakes-limestone-trade-down-534356</p></p>