Mining methods of the Copper Range Company, Houghton County, Michigan; Mechanical ventilation at the Lake Mine, Spies open-stope system of mining;

MAP OF PORTAGE LAKE MINING DISTRICT, Michigan College of Mines Yearbook, date unknown, showing Houghton in the center of the map, Portage Lake to the southeast, Torch Lake to the ...

A collection of photos from visitors of this site ... A vintage photo of Lake Mine taken around 1911. The Copper Range Depot can be seen in the middle of the photo.

Silver Mine Lakes is a lake in Marquette County in the state of Michigan. The latitude and longitude coordinates for this lake are 46.6030, -87.6532.

History Arts & Libraries - Area from Portage Lake to the brow of Quincy Hill, Hancock, Houghton County

Michigan Miner: Lake Mine #4 Shaft Area Iron Mine LSMI 1914: Woodbury Shaft Newport Iron Mine LSMI 1914: Chapin Mine Iron Mine MSM 1898: Cundy Shaft Iron Mine

Gold Mine Lake is a lake in Marquette County in the state of Michigan. The latitude and longitude coordinates for this lake are 46.5210, -87.7724.

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... titled Headwaters are no place for toxic new mining. It's a much need call on citizens of the Great Lakes region to take a hard look at the risks of sulfide mining in Michigan

The Houghton County Museum is located on M-26 in the Upper Peninsula of historic Lake Linden, Michigan and offers three floors of exhibits of local Copper Country mining, logging ...