A proposed copper mine in the western Upper Peninsula of Michigan would produce millions of pounds of copper a year Environmental activists argue the project would threaten the surrounding ...
there are two new copper mines in the Upper Peninsula of Michigan that are both located close to Lake Superior. The first is the Eagle copper-nickel mine proposed by Kennecott Minerals, a subsidiary ...
One place with some answers is the collection of photographic images from Houghton's primary newspaper, The Daily Mining Gazette, preserved in the Copper Country Historical Collections in the Michigan ...