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Name County Years Material Coordinates Adventure mine: Ontonagon: 1850–1920: copper: Alabastine Mine: Kent: 1907– gypsum: Arcadian mine: Houghton: 1898–1908: copper
Iron minerals make up one third of the formation content, the rest being quartz. The formation was discovered in 1848 by Dr. A. Randall during the Fourth principal meridian survey near Upson, Wisconsin. Ore was first produced in 1883 from the Colby Mine in Michigan. [1]: 19, 23, 90–91, 184
The principal ore mineral was chalcocite, although native copper predominated in the lower part of the beds. The mine was very successful, producing more than 1.8 million metric tons (4.0 billion pounds) of copper during its life. [citation needed] The White Pine mine, the last major copper mine in Michigan, shut down in 1995. [12]
13-oz. nugget of native copper, Keweenaw County, Michigan.Size 9.5 x 8.6 x 1.7 cm. Native copper from the Keweenaw Peninsula Michigan about 2.5 inches (6.4 cm) long. Copper Country is highly unusual among mining districts in that the copper mined was predominantly in its elemental ("native") form, rather than in the form of compounds (mostly oxides and sulfides) that form the basis of the ...
The Cliffs Shaft Mine Museum in Ishpeming and the Michigan Iron Industry Museum in Negaunee each celebrate the history of the iron ore deposit and its miners. [ 8 ] [ 9 ] A 47-mile-long (76 km) [ 10 ] hiking trail from Republic to Marquette, called the Iron Ore Heritage Trail , also provides access to the area's historical sites.
The Michigan Geological Survey is a scientific agency of the U.S. state of Michigan. The survey is headed by the State Geologist of Michigan . The survey has been composed of three individual surveys: the first from 1837 through 1845, the second from 1859 through 1862, and the third from 1869 to present.
The Eagle Mine is a small, high-grade nickel mining and copper mining project owned by Lundin Mining. The mine is located on the Yellow Dog Plains in the Upper Peninsula of Michigan in the United States. Eagle is the only primary nickel mine in the United States. The mine began production in fall 2014 and is expected to produce 440 million ...
[4] This belief changed when rich mineral deposits (primarily copper and iron) were discovered in the 1840s. The Upper Peninsula's mines produced more mineral wealth than the California Gold Rush, especially after shipping was improved by the opening of the Soo Locks in 1855 and docks in Marquette in 1859. The Upper Peninsula supplied 90% of ...