First Quantum Minerals Ltd. is a Canadian based mining and metals company whose principal activities include mineral exploration, development and mining. Its main product is copper, which accounts for 80% of revenues. as of 2016.
Kennecott Utah Copper LLC (KUC), a division of Rio Tinto Group, is a mining, smelting, and refining company. Its corporate headquarters are located in South Jordan, Utah, USA. Kennecott operates the Bingham Canyon Mine, one of the largest open-pit copper mines in the world in Bingham Canyon, Salt Lake County, Utah. The company was first formed in 1898 as the Boston Consolidated Mining Company. The current corporation was formed in 1989. The mine and associated smelter produce 1% of the world's copper.
Antofagasta plc is a Chilean business that operates in various sectors of the economy. It is one of the most important conglomerates of Chile with equity participation in Antofagasta Minerals, the railroad from Antofagasta to Bolivia, Twin Metals in Minnesota and other exploration joint ventures in different parts from the world.
Crandon mine was a mine proposed for northeastern Wisconsin, USA. It was to be situated near the town of Crandon and the Mole Lake Ojibwe Reservation in Forest County. The mine was the center of a multi-decade political and regulatory battle between environmentalists, American Indian tribes, sportfishing groups, and the State of Wisconsin and several large mining corporations. The purchase of the mine site in 2003 by the Sokaogon Ojibwe and Forest County Potawatomi marked a major victory for the tribes and environmental activists, and raised questions about the future of mining, economics, and tribal power in Wisconsin.
The Bingham Canyon Mine, more commonly known as Kennecott Copper Mine among locals, is an open-pit mining operation extracting a large porphyry copper deposit southwest of Salt Lake City, Utah, in the Oquirrh Mountains. The mine is the largest man-made excavation in the world and is considered to have produced more copper than any other mine in history – more than 19 million tons. The mine is owned by Rio Tinto Group, a British-Australian multinational corporation. The copper operations at Bingham Canyon Mine are managed through Kennecott Utah Copper Corporation which operates the mine, a concentrator plant, a smelter, and a refinery. The mine has been in production since 1906, and has resulted in the creation of a pit over 0.6 miles (970 m) deep, 2.5 miles (4 km) wide, and covering 1,900 acres. It was designated a National Historic Landmark in 1966 under the name Bingham Canyon Open Pit Copper Mine. The mine experienced a massive landslide in April 2013 and a smaller slide in September 2013.
Pebble Mine is the common name of a mineral exploration project investigating a very large porphyry copper, gold, and molybdenum mineral deposit in the Bristol Bay region of Southwest Alaska, near Lake Iliamna and Lake Clark. The proposal to mine the ore deposit using large-scale operations and infrastructure is controversial. Proponents argue that the mine will create jobs, provide tax revenue to the state of Alaska, and reduce American dependence on foreign sources of raw materials. Opponents argue that the mine would adversely affect the entire Bristol Bay watershed; and that the possible consequences to fish populations, when mining effluents escape planned containments, are simply too great of a risk. Much of this debate concerns the tentative plan to impound large amounts of water, waste rock, and mine tailings behind several earthen dams at the mine site. The project is on hold after the loss of funding partners in 2013.
Comet is a ghost town located about twenty miles south-southwest of Helena, Montana, United States. It is reached by following High Ore Road north from Interstate 15. The remains of the town cover about thirty-five acres and consist of an ore hopper, a large ore processing building, several other company buildings, and numerous houses and other private structures. High Ore Creek runs through the center of the property and separates the mine buildings from the town proper. The town is abandoned except for a single active residence; although it sits on private grazing land, it is open to public access.
Copper mining in the United States has been a major industry since the rise of the northern Michigan copper district in the 1840s. In 2017 the United States produced 1.27 million metric tonnes of copper, worth $8 billion, making it the world's fourth largest copper producer, after Chile, China, and Peru. Copper was produced from 23 mines in the US. Top copper producing states in 2014 were Arizona, Utah, New Mexico, Nevada, and Montana. Minor production also came from Idaho, and Missouri. As of 2014, the US had 45 million tonnes of known remaining reserves of copper, the fifth largest known copper reserves in the world, after Chile, Australia, Peru, and Mexico.
Copper mining in Michigan became an important industry in the 19th and early 20th centuries. Its rise marked the start of copper mining as a major industry in the United States.
In-situ leaching (ISL), also called in-situ recovery (ISR) or solution mining, is a mining process used to recover minerals such as copper and uranium through boreholes drilled into a deposit, in situ. In situ leach works by artificially dissolving minerals occurring naturally in a solid state. For recovery of material occurring naturally in solution, see: Brine mining.
The Juneau mining district is a gold mining area in the U.S. state of Alaska.
The Kayenta mine is a surface coal mine operated by Peabody Western Coal Company on the Navajo Nation in northern Arizona. About 400 acres are mined and reclaimed each year, providing about 8 million tons of coal annually to the Navajo Generating Station.
County Road 595 is a proposed primary county road in Marquette County in the US state of Michigan. The road would provide access from the northern part of the county, near the Eagle Mine in Michigamme Township, to US Highway 41 (US 41) and M-28 in Humboldt Township. The approximately 21.5-mile-long (34.6 km) road would be used primarily for commercial truck traffic hauling rock from the Eagle Mine to a processing facility south of US 41/M-28 in Humboldt Township. At present, such traffic has to use existing county roads which involves passing through the cities of Marquette, Negaunee, and Ishpeming. The northern end would be northeast of the mine in Champion Township at an intersection with the Triple A Road.
Rosemont Copper is the name of a proposed new and large open pit copper mine project pursued by the Canadian mining corporation Hudbay Minerals. It is in a permitting review process under the direction of the United States Forest Service and the U.S. Army Corps of Engineers. The project site is located within the Santa Rita Mountains and Coronado National Forest, in Pima County of southern Arizona.
The NorthMet Deposit is a deposit of minerals located in northeastern Minnesota contained within the geological region known as the Duluth Complex. The minerals contained in the deposit include copper, nickel, platinum, silver, palladium, and titanium.
The Wyoming Department of Environmental Quality (DEQ) founded in 1973, is a Wyoming state agency to protect, conserve and enhance the environment of Wyoming "through a combination of monitoring, permitting, inspection, enforcement and restoration/remediation activities". It consists of 6 divisions and since 1992, the Environmental Quality Council (EQC), a separate operating agency of 7 governor-appointed members.
Industrial stormwater is runoff from precipitation that lands on industrial sites. This runoff is often polluted by materials that are handled or stored on the sites, and the facilities are subject to regulations to control the discharges.
The Ridgeway mine was a gold and silver open-pit mine near Ridgeway, South Carolina and operated by the Ridgeway Mining Company, a division of Kennecott Minerals, itself a division of Rio Tinto. It produced 1.5 million ounces of gold and 0.9 million ounces of silver in its eleven years of operation between 1988 and 1999 and was the only active gold mine in the eastern United States for most of its life. The mine's two ore bodies are part of the gold-rich Carolina Slate Belt rock package that runs through the upstate Piedmont foothills.
