Stone shipments from U.S. and Canadian Great Lakes ports totaled 4,365,251 net tons in September, a decrease of 8 percent compared to the same period last year. Adding to the problem of decreased demand was a lengthy outage of the primary crusher at Michigan Limestone's Calcite plant.
For the season, stone shipments stand at 25.8 million tons, a decrease of 4.8 percent from last year's end-of-September total.
September 2001 | September 2000 | Season-To-Date 2001 | Season-To-Date 2000 | |
| U.S. Ports | 3,486,139 | 3,791,965 | 20,617,879 | 21,992,882 |
| Canadian Ports | 879,112 | 954,668 | 5,185,929 | 5,124,608 |
Total | 4,365,251 | 4,746,633 | 25,803,808 | 27,117,490 |