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The mine has a steady decline plunging to 1,774 feet below sea level. The mine is the deepest point in the United States where a car can be driven, down a ramp used by specialist mining vehicles. In 2022, Eagle Mine was used to set a Guinness World Record for the greatest altitude change achieved by an electric vehicle. [1] [2]
Name County Years Material Coordinates Adventure mine: Ontonagon: 1850–1920: copper: Alabastine Mine: Kent: 1907– gypsum: Arcadian mine: Houghton: 1898–1908: copper
The mine was the first Michigan copper mine to switch from fissure mining to amygdaloid mining, when the recently discovered Pewabic amygdaloid lode was found to cross Quincy property in 1856. [9] High-grade fissure veins contained large, pure masses of copper, but the masses could take days or even months to extract, at high cost.
The Quincy Mine No. 2 Shaft Hoist House is an industrial building located north of Hancock, Michigan along US Highway 41 within the Quincy Mining Company Historic District. The Hoist House contains the largest steam hoisting engine in the world, [3] which sits on the largest reinforced concrete engine foundation ever poured. [3]
The Back Forty Mine is a proposed open-pit metallic sulfide mine targeting gold and zinc deposits in Menominee County in the South Central part of Michigan's Upper Peninsula next to the Menominee River. Aquila Resources submitted its first permit applications to the state of Michigan in 2015. [1]
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Copper mines in Michigan (16 P) Pages in category "Mines in Michigan" The following 12 pages are in this category, out of 12 total.
State Street Corporation (NYSE:STT) reported strong third-quarter results, with earnings per share exceeding analyst expectations. Quarterly earnings per share of $2.26 beat the analyst consensus ...