It is estimated that half a billion pounds Ref1 of copper were mined in tens of thousands of pits on Isle Royale and the Keweenaw Peninsula of Michigan by ancient miners over a period of a thousand years Carbon dating of wood timbers in the pits has dated the mining to ...As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.Get Price
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It is estimated that half a billion pounds Ref1 of copper were mined in tens of thousands of pits on Isle Royale and the Keweenaw Peninsula of Michigan by ancient miners over a period of a thousand years Carbon dating of wood timbers in the pits has dated the mining to
Dec 18 2018 · Alexander Henry makes the first English attempt to mine copper on the Keweenaw Peninsula near the Ontonagon River At the time the nearest English settlement is nearly 300 miles away at Sault Saint Marie and the region is completely undeveloped and mostly unmapped
Apr 18 2014 · Prehistoric Copper Mining in the Lake Superior Region Octave Joseph DuTemple privately published Boom Copper Angus Murdock Macmillan Company New York 1943 Inside Michigan “Michigan’s Most Ancient Industry is America’s Prehistoric Copper Mines” July 1953
Explore Upper Peninsula Mines and Mine Museums On a fall drive through t he Upper Peninsula the copper boom still echoes throughout the tours scenic routes and historic sites Grab a hard hat a heavy coat and sturdy shoes For the next hour or so you’re a copper miner in the Upper Peninsula following in the footsteps of those who toiled here long ago
Oct 04 2017 · Copper was probably the first metal used by ancient cultures and the oldest artefacts made with it date to the Neolithic shiny redbrown metal was used for jewellery tools sculpture bells vessels lamps amulets and death masks amongst other things So important was the metal in human development that it gave its name to the Copper Age today better known as the
The Great Ancient Copper Mines of Michigan It is estimated that half a billion pounds Ref1 of copper were mined in tens of thousands of pits on Isle Royale and the Keweenaw Peninsula of Michigan by ancient miners over a period of a thousand years Carbon dating of wood timbers in the pits has dated the mining to start about 2450 BC and end abruptly at 1200 BC
Oct 09 2012 · The ancient copper mines of Michigans Upper Peninsula October 9 2012 by David Warner Mathisen The area now known as Michigans Upper Peninsula contains rich copper resources that were mined extensively beginning in the second half of the nineteenth century Amazingly the professional miners who worked the area beginning in the 1850s all describe evidence of extensive
Dec 24 2014 · Scientists find evidence of ancient copper mining in polluted lake sediments from Isle Royale National Park A visitor crouches in front of a shaft entrance at Minong Mine located in Michigan
Copper Mining History and Copper Harbor Michigan A Short History of Copper Mining Copper was first mined in this area by an ancient vanished race between 5000 and 1200 bc These miners left no burial grounds dwellings pottery clay tablets or cave drawings What was left behind was thousands of copper producing pits and more thousands of crude hammering stones with which the pits had been
Dec 19 2008 · Fred HuffmanUpper Peninsula tour guide and man about Marquetteis the one who first told me there had been Yooper copper miners 7000 years ago Ancient mine pits thousands of them extending
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