Twin Creeks gold mine, also known as Twin Creeks Mine, is an active open pit mine near Winnemucca, Nevada. [1]
It is a gold and silver mine operated by Newmont. [2] [3] The Chimney Creek gold deposit, now part of Twin Creek, was first identified in the 1980s. [4] A rare specimen of orpiment discovered in the mine was donated to the Smithsonian. [5]
In 1911, the Battle of Kelley Creek occurred in the area. Eventually, a marker was placed just to the west of where the mine was later located. The 1996 environmental impact statement mentions a reconfiguration of an overburden and interburden site so as to avoid the location of the marker for the battle. [6]
In 1993, the Twin Creeks mine was created as a combination of the Chimney Creek and Rabbit Creek mines during a coal-for-gold swap between Santa Fe Pacific and Hansen Natural Resources. [7]
Mining is the extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. The ore must be a rock or mineral that contains valuable constituent, can be extracted or mined and sold for profit. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water.
Barrick Gold Corporation is a mining company that produces gold and copper with 16 operating sites in 13 countries. It is headquartered in Toronto, Ontario, Canada. It has mining operations in Argentina, Canada, Chile, Côte d'Ivoire, Democratic Republic of the Congo, Dominican Republic, Mali, Papua New Guinea, Saudi Arabia, Tanzania, the United States and Zambia. In 2023, it produced 4.05 million ounces of gold at all-in sustaining costs of $1,335/ounce and 420 million pounds of copper at all-in sustaining costs of $3.21/pound. As of 31 December 2023, the company had 77 million ounces of proven and probable gold reserves.
Newmont Corporation is an American gold mining company based in Greenwood Village, Colorado. It is the world's largest gold mining corporation. Incorporated in 1921, it owns gold mines in Nevada, Colorado, Ontario, Quebec, Mexico, the Dominican Republic, Australia, Ghana, Argentina, Peru, and Suriname. In addition to gold, Newmont mines copper, silver, zinc and lead.
Yanacocha is a gold mine in the Cajamarca region of the Northern Highlands of Peru. Considered to be the fourth largest gold mine in the world, it produced 0.97 million ounces of gold in 2014. The 251-square kilometer open pit mine is situated about 30 kilometers north of Cajamarca, in high pampa, straddling the watershed. The operation is a joint venture between Newmont Goldcorp, Compañia de Minas Buenaventura (43.65%) and the International Finance Corporation (5%).
Newcrest Mining Limited is an Australian-based corporation which engages in the exploration, development, mining and sale of gold and the froth flotation product, gold-copper concentrate. It is Australia's leading gold mining company and its operations have expanded beyond Australia, for example Indonesia, thus becoming a prominent international mining corporation. Newmont initially started the company as a subsidiary in 1966. The subsidiary became Newmont Holdings Pvt Ltd in 1980 and in 1990 acquired 100 per cent of Australmin Holdings Limited taking the current name.
Goldcorp Inc. was a gold production company headquartered in Vancouver, British Columbia, Canada. The company stood among the largest gold producers in the world, employed about 15,800 people worldwide, engaged in gold mining and related activities including exploration, extraction, processing and reclamation. Goldcorp’s operating assets included eleven mines in North and South America.
In the United States, gold mining has taken place continually since the discovery of gold at the Reed farm in North Carolina in 1799. The first documented occurrence of gold was in Virginia in 1782. Some minor gold production took place in North Carolina as early as 1793, but created no excitement. The discovery on the Reed farm in 1799 which was identified as gold in 1802 and subsequently mined marked the first commercial production.
Gold mining in Colorado, a state of the United States, has been an industry since 1858. It also played a key role in the establishment of the state of Colorado.
The Getchell Mine is an underground gold mine in the Potosi Mining District of Humboldt County, Nevada, on the east flank of the Osgood Mountains, 35 miles northeast of Winnemucca. Prospectors Edward Knight and Emmet Chase discovered gold in 1933 and located the first claims in 1934. With the financial backing of Noble Getchell and George Wingfield, the Getchell Mine, Inc. was organized in 1936 and the mine was brought into production in 1938.
Gold mining in Nevada, a state of the United States, is a major industry, and one of the largest sources of gold in the world. In 2018 Nevada produced 5,581,160 troy ounces, representing 78% of US gold and 5.0% of the world's production. Total gold production recorded from Nevada from 1835 to 2017 totals 205,931,000 troy ounces (6,405.2 t), worth US$322.6 billion at 2020 values. Much of Nevada's gold production comes from large open pit mining using heap leaching recovery.
John Sealy Livermore was an American geologist who discovered or helped to discover four major gold deposits in northern Nevada.
The Carlin Unconformity or Carlin Trend is a geologic feature in northeastern Nevada which represents a period of erosion or non-deposition likely associated with a collision between a tectonic crustal block called a terrane and the North American Plate. The collision occurred during the Mississippian Period, about 350 million years before present. The collision is associated with the Antler Orogeny.
The mineral industry of Peru has played an important role in the nation's history and been integral to the country's economic growth for several decades. The industry has also contributed to environmental degradation and environmental injustice; and is a source of environmental conflicts that shape public debate on good governance and development.
The Telfer Mine is a gold, copper and silver mine located at Telfer on the land of the Martu people, in the Great Sandy Desert of Western Australia. It is owned by Newmont, having acquired the previous owner, Newcrest Mining, formerly the largest gold producer listed on the Australian Securities Exchange, in November 2023.
The Boddington gold mine is a gold and copper mine located 13 km (8.1 mi) northwest of Boddington, Western Australia.
The Batu Hijau mine is an open pit copper-gold mine operated by PT. Amman Mineral Nusa Tenggara. The mine is the second largest copper-gold mine in Indonesia behind the Grasberg mine of PT. Freeport Indonesia. The mine is located 1,530 kilometres (950 mi) east of the Indonesian capital Jakarta on Sumbawa, an island in West Nusa Tenggara Province, more precisely in the southern part of West Sumbawa Regency. The mine is the result of a ten-year exploration and construction program based on a 1999 discovery of the porphyry copper deposit. Production began in 2000.
Mining in the United States has been active since the beginning of colonial times, but became a major industry in the 19th century with a number of new mineral discoveries causing a series of mining rushes. In 2015, the value of coal, metals, and industrial minerals mined in the United States was US$109.6 billion. 158,000 workers were directly employed by the mining industry.
Franco-Nevada Corporation is a Toronto, Ontario, Canada-based, gold-focused royalty and streaming company with a diversified portfolio of cash-flow producing assets. It is traded on the Toronto Stock Exchange and New York Stock Exchange.
The Cripple Creek & Victor Gold Mine, formerly and historically the Cresson Mine, is an active gold mine located near the town of Victor, in the Cripple Creek mining district in the US state of Colorado. The richest gold mine in Colorado history, it is the only remaining significant producer of gold in the state, and produced 322,000 troy ounces of gold in 2019, and reported 3.45 million troy ounces of Proven and Probable Reserves as at December 31, 2019. It was owned and operated by AngloGold Ashanti through its subsidiary, the Cripple Creek & Victor Gold Mining Company (CC&V), until 2015, when it sold the mine to Newmont Mining Corporation.
Nevada Gold Mines was formed on July 1, 2019, as a joint venture between Barrick Gold and Newmont through the combination of their significant gold mining assets across northern Nevada. The assets in Nevada Gold Mines include 10 underground mines and 12 surface mines as well as related facilities. Barrick Gold is the operator of Nevada Gold Mines, and plans 200 MW of Ohio made solar panels for 2023.
41°15′22″N117°09′58″W / 41.256°N 117.166°W