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Back Forty Mine. 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]
The region through which the river flows was formerly a center of iron ore mining. Menominee River sediments are contaminated with arsenic at Marinette, Wisconsin, from industry. The Back Forty Mine is a proposed gold and zinc open-pit near Stephenson, Michigan to be constructed within 150 feet (46 m) of the river. [9]
The Old Copper complex or Old Copper culture is an archaeological culture from the Archaic period of North America's Great Lakes region. Artifacts from some of these sites have been dated from 7500 to 1000 BCE. [1][page needed] It is characterized by widespread copper artifacts, including tools and weapons, as well as ornamental objects.
Copper mining in the Upper Peninsula boomed, and from 1845 until 1887 (when it was exceeded by Butte, Montana) the Michigan Copper Country was the nation's leading producer of copper. In most years from 1850 through 1881, Michigan produced more than three-quarters of the nation's copper, and in 1869 produced more than 95% of the country's copper.
The Porcupine Mountains were the site of copper mining in the 19th century. One of these mines is the Nonesuch Mine , which operated sporadically from 1867 to 1912. Because of its copper mining history, the state park is a cooperating unit of Keweenaw National Historical Park .
The Copper Country is an area in the Upper Peninsula of Michigan in the United States, including Keweenaw County, Michigan, Houghton, Baraga and Ontonagon counties as well as part of Marquette County. The area is so named as copper mining was prevalent there from 1845 until the late 1960s, with one mine (the White Pine mine) continuing through ...
906 [a] The Upper Peninsula of Michigan —also known as Upper Michigan or colloquially the U.P. or Yoop —is the northern and more elevated of the two major landmasses that make up the U.S. state of Michigan; it is separated from the Lower Peninsula by the Straits of Mackinac. It is bounded primarily by Lake Superior to the north, separated ...
December 13, 2023 at 11:34 AM. Kletzsch Dam during a fall spawning run. The new fish passage around the dam will open 54 miles of water for fish to spawn and reproduce. For decades, the Kletzsch ...