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The Delaware Mine is located off U.S. Highway 41, 12 miles (19 km) in Grant Township, Keweenaw County, south of Copper Harbor, Michigan and is a Keweenaw Heritage Site. [1] [2] The Delaware Copper Mine provides tours of one of the oldest copper mines in the Keweenaw, [2] dating back to 1847. The mine had five shafts, with the deepest reaching ...
Gratiot Copper mine - Gratiot location, Keweenaw County; Dana mine - Central; Datolite mine - Isle Royale, Keweenaw County; Delaware mine - the abandoned town of Delaware, Keweenaw County, twelve miles south of Copper Harbor Delaware Fissure mine; Dover mine - Dover location; Dorchester Mining Company mine - Houghton County
The Pahaquarry Copper Mine is an abandoned copper mine located on the west side of Kittatinny Mountain presently in Hardwick Township [2] in Warren County, New Jersey in the United States. Active mining was attempted for brief periods during the mid-eighteenth, mid-nineteenth, and early twentieth centuries but was never successful despite ...
The town went through boom periods during the two World Wars, when demand for copper went up again. By the time the mines closed in 1946, according to the U.S. Bureau of Mines, they had produced 72,598,883 pounds of copper worth over $12 million (equivalent to $187,000,000 in 2023). No copper mining has been done since.
With 31 lode claims, the mine was noted as a good example of the state's abundant natural resources. [1] In 1906, the mine was owned by J. Stanley Jones of Denver, Colorado. [5] The NewPlanet Mining Company was incorporated in Delaware on July 13, 1909. Its predecessor, the Planet Copper Mining Co., had taken over the mine in 1902. [4]
The mine was started as the Chino Copper Company in 1909 by mining engineer John M. Sully and Spencer Penrose, [1] [2] [3] and is currently owned and operated by Freeport-McMoRan Inc. subsidiaries. The area where the mine is located is at an average elevation of 5,699 feet (1,737 m).
The Comstock Lode is notable not just for the immense fortunes it generated and the large role those fortunes had in the growth of Nevada and San Francisco, but also for the advances in mining technology that it spurred, such as square set timbering and the Washoe process for extracting silver from ore. The mines declined after 1874, although ...
San Francisco Mining District was created on August 12, 1871, in the Utah Territory 's San Francisco mountain range in Beaver County. At that time, galena was the primary ore being mined in the area. The Horn Silver Mine was established in 1875, and was the beginning of the silver mining in the range. [2]