U.S. shipments of limestone on the Great Lakes increased 4.5 percent from June 2025 to 3 million tons. This June’s U.S. loadings were also above the month’s 5-year average by 6.9 percent.Year-to-date, the Lakes U.S. limestone trade stands at nearly 7 million tons…<p><p>https://www.marinelink.com/news/lca-says-key-commodity-trade-540846</p></p>