Shipments of limestone on the Great Lakes trekked down slightly in 2023. The Lake Carriers’ Association reported that limestone shipments totaled 28.6 million tons in 2023, a decrease of less than one percent compared to 2022. Last year’s loadings were below the trade’s five-year average by 1.1 percent. 

U.S quarries saw a less than one percent increase from 2022 to 23.1 million tons. Shipments from U.S. quarries were below their five-year average by less than one percent.

Limestone shipments from Canadian quarries totaled 5.5 million tons, equalling a decrease of 4.4 percent compared to 2022. The total was 1.8 percent below the five-year average.