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ISBN 978-0-8143-3458-4., focuses on three companies, Calumet & Hecla, Copper Range, and Quincy, in a study of native copper mining and copper-sulfide mining on Upper Michigan's Keweenaw Peninsula. Thurner, Arthur W. (1994). Strangers and Sojourners: A History of Michigan's Keweenaw Peninsula. Detroit: Wayne State University Press.
The mine is at the now-abandoned town of Clifton in Keweenaw County. Mining began in 1845, and the Cliff was the most productive copper mine in the United States from 1845 through 1854. Large-scale mining stopped in 1878. [citation needed] The Cliff mined a fissure vein of native copper in Precambrian conglomerate and basalt beds. The vein was ...
The mining industry eventually contracted, and by 1887 the Central Mine was the only fully operational mine in Keweenaw County. [2] In 1898 the mine ceased operation, and residents began leaving the town. The last permanent resident left in 1952, although some structures in the area are still used as summer cottages. [2] Central Mine Methodist ...
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 ...
There are hundreds of ancient mining pits in and around the Copper Country area, especially on Isle Royale (several of these were developed). Numerous small modern diggings exist around the area as well, including some around Fort Wilkins and the Copper Harbor Light .
The county is part of Michigan's Copper Country region, an area where copper mining was prevalent from the 1840s to the 1960s. Polished native copper nugget from Keweenaw County. Keweenaw County copper mines were important producers in the late 19th and early 20th centuries. [5] Haven Falls, on Haven Creek near Lac La Belle
The Mohawk Mining Company was a major copper mining company, based in the Keweenaw Peninsula of Michigan, that was established in November 1898 and lasted until 1932.The company, between 1906 and 1932, paid out more than $15 million in shareholder dividends. [1]
Copper knife, spearpoints, awls, and spade made from copper deposits mined by Native Americans in Wisconsin from the Late Archaic period, 3000 BC-1000 BC.. Native Americans were the first to mine and work the copper of Lake Superior and the Keweenaw Peninsula of northern Michigan between 5000 BCE and 1200 BCE.