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michigan open pit mining:

Michigan judge nullifies crucial permit for mining project

Jan 05, 2021  TRAVERSE CITY, Mich. (AP) — A Michigan judge has overruled state regulators who approved a key permit for a proposed open-pit mine in the Upper Peninsula, another delay for a project that has been debated for nearly two decades. Administrative Law Judge Daniel Pulter invalidated a wetlands permit granted in 2018 to Aquila Resources Inc.

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Republic Michigan and the Republic Mine in the Upper Peninsula

The Republic Mine is the only open pit mine in Michigan open for free public viewing. This inactive open pit iron mine, owned by Cleveland Cliffs Iron Company, provides a unique opportunity for viewing by the public. From the observation stand near the pit's edge, you gain an appreciation of the enormous magnitude of planning and effort ...

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Huge Upper Peninsula mine OK'd despite major concerns

Aug 13, 2019  Over and over, Michigan environmental regulators sounded alarms as they reviewed a proposed large, open-pit ore mine in the Upper Peninsula

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noback40.org - Back 40 Mine Info

The Back Forty Mine project is a proposed open pit metallic sulfide mine located on the banks of the Menominee River in Lake Township, Michigan. Aquila Resources Inc. (TSX: AQA) ("Aquila"), a Canadian development stage company, is actively seeking the necessary approvals to mine and process gold, zinc, copper, silver and other minerals at the site.

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Michigan-coal-mines - Mining Artifacts

The height of production was 2 million tons in 1907, but many mining operations had stopped by 1930, with some small scale open pit mining operations continuing until 1952 near Williamston The last deep coal mine in Michigan closed in 1952. However, at one time more than 160 coal mines once were active in the Michigan Coal Basin.

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Michigan judge nullifies crucial permit for mining project

Jan 05, 2021  TRAVERSE CITY, Mich. (AP) — A Michigan judge has overruled state regulators who approved a key permit for a proposed open-pit mine in the Upper Peninsula, another delay for a project that has been debated for nearly two decades. Administrative Law Judge Daniel Pulter invalidated a wetlands permit granted in 2018 to Aquila Resources Inc.

Read More
Back Forty Mine Homepage Aquila Resources Inc ...

The Back Forty Mine is a proposed open-pit gold and zinc mine located in Menominee County in the South Central part of Michigan’s Upper Peninsula. The mine is estimated to produce 512 million pounds of zinc and 468 thousand ounces of gold. Also, the mine is predicted to yield 51 million pounds of copper, 4.5 million ounces of silver, and 24 ...

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Michigan judge denies wetland permit for Back Forty mine

Jan 05, 2021  A Michigan judge Monday denied a wetland permit for a large open-pit ore mine that for years has drawn pushback from both local residents and opponents from across Michigan and

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Huge Upper Peninsula mine OK'd despite major concerns

Aug 13, 2019  Over and over, Michigan environmental regulators sounded alarms as they reviewed a proposed large, open-pit ore mine in the Upper Peninsula

Read More
Michigan-coal-mines - Mining Artifacts

The height of production was 2 million tons in 1907, but many mining operations had stopped by 1930, with some small scale open pit mining operations continuing until 1952 near Williamston The last deep coal mine in Michigan closed in 1952. However, at one time more than 160 coal mines once were active in the Michigan Coal Basin.

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Back Forty Project - Aquila Resources Inc.

The open pit mining operation will encompass a single open pit that will be mined with conventional mining equipment in three pushback phases. The underground mine will be developed beneath the open pit with a single decline access point located partway down the open pit main access ramp.

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Michigan-Iron-Mines - Mining Artifacts

Extensive development of low grade ores and open pit mining began after World War 11, and a relatively new process, agglomeration, then began to yield an iron ore concentrate that contained about sixty-five per cent iron compared with fifty-six to sixty per cent from the average underground workings of the high grade ore.

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sand gravel - Michigan State University

Usually, open pit mines are used to extract the sand and gravel. To open-pit mine for sand and gravel, four operations are necessary: (1) site clearing (removal of trees and vegetation, soil, and other overburden; soil must be stockpiled and reused later), (2) mining, (3) processing (crushing, screening, washing, blending and stockpiling of the ...

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Open-pit mining - Wikipedia

Open-pit mining, also known as open-cast or open cut mining, is a surface mining technique of extracting rock or minerals from the earth by their removal from an open-air pit, sometimes known as a borrow.. This form of mining differs from extractive methods that require tunnelling into the earth, such as long wall mining.Open-pit mines are used when deposits of commercially useful ore or rocks ...

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The Great Ancient Copper Mines of Michigan - Greater Ancestors

Indian legends tell the mining was done by fair-haired “marine men”. Along with wooden tools, and stone hammers, a walrus-skin bag has been found (Ref.1). A huge copper boulder was found in the bottom of a deep pit raised up on solid oak timbers, still preserved in

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noback40.org - Back 40 Mine Info

The Back Forty Mine project is a proposed open pit metallic sulfide mine located on the banks of the Menominee River in Lake Township, Michigan. Aquila Resources Inc. (TSX: AQA) ("Aquila"), a Canadian development stage company, is actively seeking the necessary approvals to mine and process gold, zinc, copper, silver and other minerals at the site.

Read More
Calcite Quarry, Michigan - NASA

These carbonate rocks are mined throughout the Great Lakes region using large open-pit mines. The largest carbonate mine in the world, Calcite Quarry, appears in this astronaut photograph. Image of the Day for August 7, 2006

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List of copper mines in the United States - Wikipedia

Eagle Mine: Marquette County, Michigan: Lundin Mining: Underground mine producing nickel and copper concentrates 18 (2018) 15 Phoenix Lander County, Nevada: Newmont Mining Corporation: Gold-copper ore, concentrated and leached 16 (2018) 16 Lisbon Valley San Juan County, Utah: Lisbon Valley Mining Company Copper ore, open pit, heap leached 10-15 ...

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Republic Mine, Upper Peninsula Michigan, 1978 - YouTube

Here are some rare images of this massive open pit iron ore mine when it still operated. Includes a view looking into a cone gyratory crusher.

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Back Forty Mine Homepage Aquila Resources Inc ...

The Back Forty Mine is a proposed open-pit gold and zinc mine located in Menominee County in the South Central part of Michigan’s Upper Peninsula. The mine is estimated to produce 512 million pounds of zinc and 468 thousand ounces of gold. Also, the mine is predicted to yield 51 million pounds of copper, 4.5 million ounces of silver, and 24 ...

Read More
Michigan judge denies wetland permit for Back Forty mine

Jan 05, 2021  A Michigan judge Monday denied a wetland permit for a large open-pit ore mine that for years has drawn pushback from both local residents and opponents from across Michigan and

Read More
Michigan-coal-mines - Mining Artifacts

The height of production was 2 million tons in 1907, but many mining operations had stopped by 1930, with some small scale open pit mining operations continuing until 1952 near Williamston The last deep coal mine in Michigan closed in 1952. However, at one time more than 160 coal mines once were active in the Michigan Coal Basin.

Read More
Welcome to the Republic Open Pit Mine Observation Site ...

Aug 27, 2014  Cleveland Cliffs Iron Company took ownership of the underground Republic Mine in 1914. By 1928 the demand for ore had dropped, the mine closed and the Great Depression followed. When CCI reopened and expanded as an open pit mine during the 1950's an eager workforce again resumed mining. An exciting 30-year period of boom and prosperity followed.

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Back Forty Project - Aquila Resources Inc.

The open pit mining operation will encompass a single open pit that will be mined with conventional mining equipment in three pushback phases. The underground mine will be developed beneath the open pit with a single decline access point located partway down the open pit main access ramp.

Read More
sand gravel - Michigan State University

Usually, open pit mines are used to extract the sand and gravel. To open-pit mine for sand and gravel, four operations are necessary: (1) site clearing (removal of trees and vegetation, soil, and other overburden; soil must be stockpiled and reused later), (2) mining, (3) processing (crushing, screening, washing, blending and stockpiling of the ...

Read More
Calcite Quarry, Michigan - NASA

These carbonate rocks are mined throughout the Great Lakes region using large open-pit mines. The largest carbonate mine in the world, Calcite Quarry, appears in this astronaut photograph. Image of the Day for August 7, 2006

Read More
Controversial UP mining project one step closer to reality ...

Apr 10, 2017  Michigan’s first potential new gold mine since the late 1800s now has three of four permits it needs to open. The Michigan Department of Environmental Quality issued a surface water permit for the Back Forty Project this month.. That proposal is an open-pit sulfide mine located along the Menominee River in the Upper Peninsula.

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List of copper mines in the United States - Wikipedia

Eagle Mine: Marquette County, Michigan: Lundin Mining: Underground mine producing nickel and copper concentrates 18 (2018) 15 Phoenix Lander County, Nevada: Newmont Mining Corporation: Gold-copper ore, concentrated and leached 16 (2018) 16 Lisbon Valley San Juan County, Utah: Lisbon Valley Mining Company Copper ore, open pit, heap leached 10-15 ...

Read More
The Great Ancient Copper Mines of Michigan - Greater Ancestors

Indian legends tell the mining was done by fair-haired “marine men”. Along with wooden tools, and stone hammers, a walrus-skin bag has been found (Ref.1). A huge copper boulder was found in the bottom of a deep pit raised up on solid oak timbers, still preserved in

Read More
Wakefield Iron Mine In Wakefield, Michigan The Diggings™

The Wakefield Iron Mine is in Wakefield, Michigan. Historically the site has been associated with the Michigan Gogebic Iron Mining District which is now part of the Ottawa National Forest. The site was first discovered in 1912. The Wakefield Iron Mine was closed at the time of data entry with no known plans to re-open.

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Out in the Borderland: World's Largest Open Pit Iron Mine ...

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Alabaster - Abandoned - Abandoned Building Photography

Aug 14, 2019  Alabaster is a historic mining complex along the shores of Lake Huron in Michigan. It consists of an open-pit gypsum mine and the remains of processing buildings, shops, offices, houses, and outbuildings. It also contains an abandoned railroad and the remains of an elevated marine tramway that spans 1½ miles into Saginaw Bay.

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Show Mines of the United States of America: Republic Iron Mine

This opencast mine is now closed, and the groundwater filled the huge pit to a certain level. Above this level, the mined ore is easy to see. The pit is 200m deep and has an area of 100ha. It is the only open pit mine in Michigan open for free public viewing. There is an observation stand near the pit's edge.

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