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Franklin Jr. mine (originally the Albany and Boston mine; then the Peninsula mine) - Ripley, Houghton County; Halliwell mine - Porcupine Mountains, Ontonagon County; Hancock mine - Hancock, Houghton County Dupuis shaft; Hanover mine - Copper Harbor, Keweenaw County; Hays mine (originally the Pittsburg and Boston mine) - Copper Harbor, Keweenaw ...
Underground mine producing nickel and copper concentrates 18 (2018) [8] 15 Phoenix Lander County, Nevada: Newmont Mining Corporation: Gold-copper ore, concentrated and leached 16 (2018) [6] 16 Lisbon Valley San Juan County, Utah: Lisbon Valley Mining Company Copper ore, open pit, heap leached 10–15 (2018) [9] 17 Miami: Gila County, Arizona ...
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 ...
Hollowed Ground: Copper Mining and Community Building on Lake Superior, 1840s-1990s. Detroit: Wayne State University Press. 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).
The Minong Mine site contains prehistoric copper mining pits, thought to be as old as 4500 years. In addition, the site contains the remains of the Minong Mine, a 19th century copper mine that produced 249 tons of copper over its ten years of existence. 33: Monarch: Monarch: June 14, 1984 : Palisade area on the north side of Blake Point [6
Delaware Mine entrance. The Delaware Copper Mine is located off U.S. Highway 41 (US 41), 12 miles (19 km) south of Copper Harbor, Michigan. [4] The Delaware Copper Mine provides tours of one of the oldest copper mines in the Keweenaw, [4] dating back to 1846. [18] The mine had five shafts, with the deepest reaching 1,400 feet (430 m). [18]
Anglo will keep drawing interest from rivals primarily because of its Collahuasi, Quellaveco and Los Bronces mines in Chile and Peru, with rich copper deposits making them longer life assets. It ...
Laurium (/ ˈ l ɔː r i ə m /; LAW-ri-um or / ˈ l eɪ r i ə m / LAIR-i-um) is a village in Calumet Township, Houghton County in the U.S. state of Michigan, in the center of the Keweenaw Peninsula. The population was 1,977 at the 2010 census. The village is mostly surrounded by Calumet Township, with a small portion bordering Schoolcraft ...