Doe Run Opens Its Mines for Free Tours During Old Miners Days
· "Mining has been a part of Missouri's history for more than 300 years," said Brian Mangogna, general manager at Doe Run's Southeast Missouri Mining and Milling Division (SEMO). "Those early miners would be amazed to see the technologies transforming how we work today. In many cases, we're one of the first mining companies to pilot new innovations, like Railveyor, an automated ...