The aggregate value of iron ... ore, and by the increased efficiency of the mining and metallurgical plant in use. Undoubtedly the greatest advantage possessed by the United States is that in the ...

The legislation would make permanent a 20-year ban on that type of mining on 225,000 acres of Superior National Forest in the ...

Shipments of iron ore on the Great Lakes were below one million tons in March, a decrease of 39.1% compared to 2024, reports ...