Limestone News

Shipments of limestone across the Great Lakes held relatively steady in July 2025, totaling 3.53 million tons — a fractional drop of less than 1% compared to the same month last year, according to the Lake Carriers’ Association (LCA). Despite the minimal year-over-year change, the trade fell 6.7% short of the month’s five-year average, reflecting softer demand from some key markets.Loadings from U.S. quarries, which supply the bulk of the region’s limestone, reached 2.88 million tons in July, down 1% from 2024. Canadian shipments showed a similar pattern, easing slightly to 646,418 tons.