Tag Archives: Sierra Club

Graymont submits new mine proposal for Michigan’s Upper Peninsula

By Howard Meyerson GRAND RAPIDS, MI — A Canadian mining company, Graymont Inc., has submitted a revised proposal to mine limestone on state land in the Upper Peninsula. Michigan Department of Natural Resources officials say the request is now under … Continue reading

Posted in Uncategorized | Tagged , , , , , , , , , | 1 Comment