Anaconda Copper
Company type | Subsidiary (1977–83) |
---|---|
Industry | Mining |
Founded | 1881Anaconda, Montana | in
Founder | Marcus Daly |
Defunct | 1983 | (de facto)
Fate | Closed |
Headquarters | , United States |
Number of locations | Anaconda, Butte, Columbia Falls, Great Falls, Thompson Falls (all in Montana) Anaconda, New Mexico Thunder Basin area, Wyoming Weed Heights, Nevada (1952–78) Chuquicamata, Chile (1922–71) Cananea, Mexico (1922–71) Katowice, Poland (1926–39) Tooele, Utah (1909–81) |
Products | Copper, aluminum, zinc, silver, gold, uranium and other metals; coal; forest products |
Parent | ARCO |
The Anaconda Copper Mining Company, known as the Amalgamated Copper Company from 1899 to 1915,[1] was an American mining company headquartered in Butte, Montana. It was one of the largest trusts of the early 20th century and one of the largest mining companies in the world for much of the 20th century.[1]
Marcus Daly bought the original silver mine, named the Anaconda, in 1880. Daly partnered with George Hearst, James Ben Ali Haggin and Lloyd Tevis in 1881 to develop it, and the company expanded dramatically in 1882 with the discovery of huge copper deposits. In 1883, Daly began building a smelter and the town of Anaconda to process copper mined in Butte. In 1899, with Hearst and Tevis deceased, Haggin retired and Daly restructured the enterprise into the Amalgamated Copper Company, bringing in H H Rogers and William Rockefeller.
By 1910, Amalgamated had expanded its operations and bought the assets of all other copper companies operating in Butte. In 1922, Anaconda bought mining operations in Mexico and Chile; the latter hosted the largest mine in the world and for a time yielded two-thirds of the company's profits. The company added aluminum reduction to its portfolio in 1955. In the 1950s, the company switched over from underground to open-pit mining. In 1960 its operations employed 37,000 employees in North America and Chile.
Anaconda Copper was purchased by the Atlantic Richfield Company (ARCO) on January 12, 1977. ARCO halted production at the Anaconda smelter in 1980, and mining ceased completely in 1982 when the deep pumps draining the Berkeley Pit and the underground mines were shut off, allowing the Pit and mines to fill. The company presently only exists as a major environmental liability for BP, who bought out ARCO in 2000. Its former operations are now the largest Superfund site in the country; CERCLA liability passed to BP upon its acquisition of ARCO.
History of Anaconda Copper
[edit]Beginnings
[edit]Marcus Daly, a self-taught miner, engineer and geologist, bought a small silver mine called Anaconda in 1880. At the time, Daly was working for the Walker brothers, mining investors and bankers from Salt Lake City, Utah. He was a mining superintendent of the Alice, a silver mine in Walkerville, a suburb of Butte. While working in the Alice, he noticed significant quantities of high grade copper ore. Daly scouted the Anaconda and several other mines in the area and recommended the mine to the Walker brothers, who sent a professional geologist to inspect the Anaconda. The Walkers were not interested in the mine, and Daly sold his interest in the Alice to purchase it himself.
Placer gold and silver lode mining had taken place at Butte, placer mining at Helena, Bannock and Virginia City, Montana territory respectively, and Butte was nearing the end of its silver lode mining phase. Lacking capital to develop the mine, Daly sought financing from San Francisco mining magnate George Hearst and his partners, James Ben Ali Haggin and Lloyd Tevis, of Hearst, Haggin, Tevis and Co. and the Anaconda Company was born in 1881 with Daly as a 25% partner in the enterprise. Daly had recommended Hearst purchase the Ontario mine, a silver mine in Alta, Utah, which consequently made Hearst many millions.
Huge deposits of copper were soon developed and Daly became a copper magnate. When surrounding silver mines "played out" and closed, Daly bought up the neighboring mines, forming a mining company. In 1883, Daly built a smelter at Anaconda, Montana, building a company town to support the workers, and connected his smelter to Butte by his Butte, Anaconda and Pacific Railway.[2] Butte became one of the most prosperous cities in the country, often called "the Richest Hill on Earth." From 1892 through 1903, the Anaconda mine itself was the largest copper-producing mine in the world.[3] It produced more than $300 billion worth of metal in its lifetime.
Rothschilds
[edit]In 1889 the Rothschilds tried to gain control of the world copper market. In 1892 the French Rothschilds began negotiations to buy the Anaconda mine. In mid-October 1895 the Rothschilds, French and British, bought out the stock in Anaconda held by Hearst's widow, Phoebe Apperson Hearst, for $7.5 million. By the late 1890s the Rothschilds probably had control over the sale of about forty percent of the world's copper production.[4]
Rockefellers
[edit]The Rothschilds' role in Anaconda was brief. In 1899, Daly teamed up with two directors of Standard Oil to create the Amalgamated Copper Mining Company which grew to become one of the largest trusts of the early 20th century. The leading roles were played by Henry Huttleston Rogers (John D. Rockefeller's friend and a key man in his Standard Oil businesses) and William Rockefeller (John's brother). They were aided by company promoter Thomas W. Lawson. Although Rogers and William Rockefeller were Standard Oil directors, the company of Standard Oil did not have a stake in this business, nor did its founder and head, John D. Rockefeller, who disliked such stock promotions.[5]
By 1899 Amalgamated Copper acquired majority stock in the Anaconda Copper Company, and the Rothschilds appear to have had no further role in the company. By his death in 1900, Marcus Daly had just become president of the holding company valued at $75 million.
Lawson later had a falling out with Rogers and Rockefeller, and wrote of the experience in a book Frenzied Finance (1905). Colored by Lawson's bitterness, the book offered insight into aspects of high finance.
Amalgamated competes in copper
[edit]At the beginning of the 1900s, due to electrification (and Amalgamated's maintenance of an artificially high copper price), copper was very profitable, and copper mining expanded rapidly. Between 1899 and 1915, Anaconda, controlled by Standard Oil insiders, stayed under the name of Amalgamated Copper Company.
Amalgamated was in conflict with powerful copper king F. Augustus Heinze, who also owned mines in Butte; in 1902 he consolidated these as the United Copper Company. Neither organization was able to monopolize copper extraction in Montana. In addition, although Butte was the most prolific copper-mining district in the world, Amalgamated could not control production from other copper producing districts, such as those in Michigan, Utah, Arizona, or countries outside the United States.
Marcus Daly passed away in 1900. His widow began a close friendship with a shrewd, intelligent businessman, John D. Ryan, who assumed the presidency of Daly's bank and management of his widow's fortune. The leaders of Amalgamated turned to Ryan, famous for his negotiation skills, for help in creating a monopoly at Butte.
Control of the areas producing mines was a key to high income. Ryan convinced Heinze to walk away with abundant compensation, allowing Amalgamated to take over Heinze's properties as well as the properties of William A. Clark (another Butte copper magnate). Amalgamated gained almost complete control of Butte's copper as they merged with these companies. The reorganized company was again named Anaconda. Ryan made its president and rewarded with a significant package of Amalgamated shares.
The "right hand" of John Ryan was Cornelius Kelley, a young attorney, who soon was given the position of vice-president.
Henry Rogers died suddenly in 1909 of a stroke, but William Rockefeller brought in his son Percy Rockefeller to help with leadership.
In 1912 and 13, the Pujo Committee investigated William Rockefeller and others for allegedly earning $30 million in profit through cornering of the copper market and "synchronizing with artificially enforced activity" in Amalgamated Copper stock in the New York Stock Exchange.[6]
The golden twenties
[edit]During the 1920s, metal prices went up and mining activity increased. Those were really the golden years for Anaconda. The company was managed by the Ryan-Kelley team and was growing fast, expanding into the exploitation of new base metal resources: manganese and zinc. In 1922 the company acquired mining operations in Chile and Mexico (Cananea).
The mining operation in Chile (Chuquicamata), was acquired from the Guggenheims in 1923.[7] It cost Anaconda $77 million and was the largest copper mine in the world. It produced copper yielding two-thirds to three-fourths of the Anaconda Company's profits.
The same year ACM purchased American Brass Company, the nation's largest brass fabricator and a major consumer of copper and zinc. In 1926 Anaconda acquired the Giesche company, a large mining and industrial firm, operating in the Upper Silesia region of Poland. This nation had gained independence after World War I.
At that time Anaconda was the fourth-largest company in the world. These heady times, however, were short-lived.
Great speculation
[edit]In 1928, Ryan and Rockefeller aggressively speculated on Anaconda shares by manipulating the supply of copper (reducing supply to corner the market), causing shares to go up at first; at which point they sold, which caused stocks to fall; then buying them back. Known today as a "pump and dump", at the time the actions were not illegal and took place frequently. Anaconda was producing copper at such a rate they had tremendous stockpiles. To control prices, the company only sold the requested supply. Under the pressure of a "joint account" set up by Ryan and Rockefeller of nearly a million and a half shares of Anaconda Copper Company, prices fluctuated from $40 in December 1928, to $128 in March 1929. Selling large volumes of shares rather quickly causes the bottom to fall out of the market; investors lose confidence and dump their shares, causing a domino effect. Small investors would purchase blocks of shares on credit, and when they could not sell at or above the given price, had to sell the shares at a loss when the banks called on their loans for the purchase of said shares.
Smaller investors were completely wiped out. The results are still considered one of the greatest fleecings in Wall Street history. The United States Senate held hearings on the stock manipulations, concluding that those operations cost the public at the very least, $150 million. A 1933 Senate banking committee called these operations the greatest frauds in American banking history, a leading cause of the 1929 stock market crash and 1930s depression.[citation needed]
Great Depression
[edit]In 1929 Anaconda Copper Mining Co. issued new stock and used some of the money to buy shares of speculative companies. When the market crashed on October 29, 1929, Anaconda suffered serious financial setbacks. At the same time, copper prices started dropping dramatically. During the winter of 1932–33, as the Depression expanded, copper prices dropped to 10.3 cents per pound, down from an average of 29.5 cents per pound only two years earlier.
The Great Depression took a toll in the mining industry; decline in demand led to the company making massive layoffs in both the United States and Chile (up to 66 percent unemployment rate in the Chilean mines). On March 26, 1931, Anaconda cut its dividend rate 40%. John D. Ryan died in 1933 and was buried in a copper coffin. His mighty Anaconda shares, once worth $175 each, had dropped to $3[8] at the low of the Great Depression. Cornelius Kelley became the chairman in 1940.
Beginning of WWII
[edit]![](http://up.wiki.x.io/wikipedia/commons/thumb/5/5a/1942-anaconda-LMC.jpg/350px-1942-anaconda-LMC.jpg)
Butte mining, like most U.S. industry, remained depressed until the dawn of World War II, when the demand for war materials greatly increased the need for copper, zinc, and manganese. Anaconda ranked 58th among United States corporations in the value of World War II-military production contracts.[9] That relieved some of the economic tensions.
The end of World War II brought another depression in the copper industry because of a decline in demand after war production ended.
1950s
[edit]During the post-war years, demand and prices for copper dropped. At the same time mining costs had risen precipitously. As a result, copper production from Butte's underground vein mines dropped to only 45,000 mt annually. Anaconda tasked its engineers with devising new techniques to keep mining profitable. The answer was called the "Greater Butte Project" (GBP). The project would exploit lower-grade underground reserves by the block-caving method. Anaconda sank a new shaft, the Kelley, and the mine began producing in 1948. The new method was successful, although short-lived. They also began stripping ground for what was to become the Berkeley Pit.
In 1956 Anaconda netted the largest annual income in its history: $111.5 million. After that year, ore grades continued their decline, mining costs were rising each year, and profits were diminishing. To survive, the company switched to open-pit mining, a very area-consuming method. The Berkeley Pit kept expanding and ate away at the older parts of Butte.
1970s
[edit]In 1971, Chile's newly elected Socialist president Salvador Allende confiscated the Chuquicamata mine from Anaconda, stripping Anaconda of two-thirds of its copper production. Allende was overthrown violently in 1973 in an operation backed by the United States government, and the successor government of Augusto Pinochet paid Anaconda compensation of $250 million.
Losses from the Chilean takeover however, had seriously weakened the company's financial position. Later in 1971, Anaconda's Mexican copper mine Compañía Minera de Cananea, S.A. was nationalized by president Luis Echeverría Álvarez's government. An unwise investment in the unsuccessful Twin Buttes mine in southern Arizona further weakened the company. In 1977 Anaconda was sold to Atlantic Richfield Company (ARCO) for $700 million. However, the purchase turned out to be a regrettable decision for ARCO. Lack of experience with hard-rock mining, and a sudden drop in the price of copper to sixty-odd cents a pound, the lowest in years, caused ARCO to suspend all underground mining operations in Butte in 1980. ARCO closed the Berkeley Pit and shut off the deep pumps in 1982, allowing the pit and mines to fill with water. The Continental Pit, the last active Anaconda mining property in Butte, was closed in 1982, but resumed mining in the early 2000's.
Six years after ARCO acquired rights to the "Richest Hill on Earth", Butte's mines were completely idle. ARCO founder, Robert Orville Anderson, stated "he hoped Anaconda's resources and expertise would help him launch a major shale-oil venture, but that the world oil glut and the declining price of petroleum made shale oil moot."[10] At the time of the sale to ARCO, Anaconda had large working hard coal holdings in the Black Thunder mine at Thunder Basin, Wyoming. ARCO planned to diversify its energy business into coal. In June 1998, Arch Coal completed the acquisition of the coal assets of Atlantic Richfield.
Superfund site
[edit]Closing down the mines was not the end of the new owner's problems. The areas of Butte, Anaconda, and the Clark Fork River in this vicinity became highly contaminated by a century of mining and smelting operations. Milling and smelting processes produced wastes with high concentrations of arsenic, as well as copper, cadmium, lead, zinc, and other heavy metals. Beginning in 1980s, the Environmental Protection Agency designated the Upper Clark Fork river basin and many associated areas as Superfund sites—the nation's largest.
The EPA named ARCO as the "potentially responsible party." As a result, ARCO was obliged to remediate (clean up) the area. Since then, ARCO and BP have spent hundreds of millions of dollars decontaminating and rehabilitating the area, though the job is far from finished.
ARCO merged with BP in 2000. BP in turn sold most of ARCO to Tesoro in 2010, but retains responsibility for cleanup of the Anaconda operations and uses ARCO as a subsidiary to handle Anaconda-related lawsuits.[11][12]
Aluminum operations in Columbia Falls
[edit]Anaconda diversified into aluminum production in 1952, when they purchased rights to build an aluminum reduction plant in Columbia Falls. After two years of construction, the plant went online in August 1955. Following two expansions in the 1960s, the plant had a peak output capacity of 180,000 tons annually. ARCO kept the plant open after Butte copper operations ceased in 1982, and sold the plant to a group of investors led by a former ARCO executive in 1985, due to high electricity costs and low market prices. As Columbia Falls Aluminum Company (CFAC), the plant continued operations as an independent company until it was purchased by Swiss metals giant Glencore in 1999. Glencore continued CFAC operations through 2009, when it temporarily shuttered the plant due to high electricity costs and low market prices. On March 3, 2015, the closure became permanent.[13][14]
Anaconda Copper in literature and film
[edit]Dashiel Hammett's 1929 novel Red Harvest was based on Hammett's experience as a Pinkerton Detective working at the Anaconda Mine in Butte and the Anaconda Road massacre in 1920.
- The independent documentary An Injury to One (2002) by Travis Wilkerson chronicles the history of Anaconda in Butte, Montana, and its efforts to suppress unionization by its workers. Organizer Frank Little of the IWW was lynched and no one was ever prosecuted for his murder. The short film ends with a discussion of Berkeley Pit.
- Michael Punke's Fire and Brimstone: The North Butte Mining Disaster of 1917 covers the Speculator Mine disaster of 1917 in Butte, and the impact that had on big mining and unions in Montana.
- The 2008 PBS documentary Butte, America covers similar themes.
- In the film The Motorcycle Diaries (2004), Che Guevara and his friend Alberto Granado watch as desperately poor men are being hired for very dangerous work in Anaconda's Chuquicamata mine in Chile.
- The novel Sweet Thunder (2013) by Ivan Doig recounts a journalistic duel between a union newspaper and a company newspaper in 1920s Butte.
Semiotics
[edit]"Copper Collar"
[edit]The term copper collar, coined in the late 1800s, was a metaphor used to describe a person or company directly controlled by the Anaconda Company.
From the 1920s until 1959, journalists working at the newspapers could write nothing that clashed with the company's business enterprises. Journalists were thus not allowed to develop and exercise their professional skills through their news judgment - lawyers and accountants made news judgments, not journalists — and were frozen for decades in this pre-professional model.[15]
By 1920, the Anaconda Company owned several Montana newspapers including the Butte Post, Butte Miner, Anaconda Standard, Daily Missoulian, Helena Independent, and Billings Gazette.[16] The Anaconda Company controlled the economic and political dealings throughout Montana well into the mid-1900s.[17]
!["Semiotic Square of the Anaconda Copper Company and the "copper collar"."](http://up.wiki.x.io/wikipedia/commons/thumb/e/ea/Semiotic_Square.jpg/220px-Semiotic_Square.jpg)
As the state's largest employer, Anaconda dominated Montana politics. In the political arena the "copper collar" symbolized influence, wealth, and power. In 1894, Montana held an election to decide which city would be its capital. Marcus Daly, an Anaconda supporter, used his power over the papers to further his cause.[18] While campaigning, "Anaconda's supporters portrayed Helena as a center of avarice and elitism while promoting their choice as the pick of the working man. In return, Helena's backers claimed that if the victory should go to their opponent the entire state would be strangled by the "copper collar" of Daly's Anaconda Copper Mining Company."[19] Daly's campaign was unsuccessful and Helena became the state's capital. Flexing its political muscle again in 1903, the Anaconda Company closed down operations within all of Montana, putting 15,000 men out of work until the legislature enacted the regulations it demanded. Montanans were angered by this decision and from that point forward, to suggest a politician "wore a copper collar", could cost him the election.[20]
The copper collar symbolized oppression and control to the people of Butte. In the early 20th century, Butte's culture with its
perverse pride in its wide open character was a response to the people's belief in the all-encompassing power of the company. Butte's bars, gambling dens, dance halls, and brothels were among the few public institutions not owned or controlled by Anaconda. It was not only the hazards of mining and the grim environment of Butte that propelled men and women to frenzied gaiety, but also the thought that here were arenas of self-expression denied them elsewhere in a city ringed by the 'copper collar'.[21]
Choosing sides in this battle was unavoidable. According to Author Fisher's article, "Montana: Land of the Copper Collar," "Six months is the longest one may live in Montana without making the decision whether one is 'for the Company' or 'against the Company.' The all-pervading and unrelenting nature of the struggle admits of no neutrals. Since the territory's admission to statehood in 1889 the struggle has continued."[22]
The term "copper collar" was used in historical novels set in that period. In The Old Copper Collar (1957), a tale of the course of a senatorial election in Helena in the early 20th century, Dan Cushman refers to the "copper collar": "At this point the galleries packed with Bennett sympathizers commenced heckling him with suggestions he wore the Copper Collar, but these hoots and catcalls he contemptuously ignored, reiterated his freedom from all cliques, factions, and corporations and that his purpose had been purely and simply to prove or disprove unlawful practices, and sat down." Even the suggestion that a person wore the "copper collar" created pandemonium from the crowd.[23]
Ivan Doig refers to the "copper collar" in his novel Work Song (2010). In 1919, Gracie resists the powerful Anaconda Company as they try to force her to sell her property. She says, "Leave this house at once, Whoever-You-Are Morgan. I'll not have under my roof a man who wears the copper collar." The workers who are under the "copper collar" are referred to as "snakes" and the Anaconda Company is referred to as an "ogre".[24]
The "copper collar" symbolized different things to different people but "the Anaconda Company used the tactics of an authoritarian state to quash a legitimate labor movement within its corporate fiefdom. That the press, an elemental part of democracy, was used in the assault marks a black period in the history of American journalism."[25] In Homelands: A Geography of Culture and Place across America, John B. Wright writes that for decades, the Anaconda Company:
mined and smelted metal, leveled forests, owned the newspapers, bribed the legislature, set the wages, murdered union organizers, exported the earnings, and finally shut down, leaving Butte and Anaconda the poorest cities in the states and the largest EPA Superfund site in the country.[26]
The phrase "copper collar" is also an example of metonymy when it is substituted for the act of the Anaconda Company controlling a person. It is closely related to the company because it is made of copper, which is what the company mined. A collar is a device used to control, which is what the company used the copper collar for.
In the Semiotic Square for the "copper collar" (see illustration), Marcus Daly is considered the assertion and Miners is the negation in the first binary pair. The second binary relationship is created on the "control" axis. Union, the not Marcus Daly element, is considered to be the complex term, and "copper collar", the Miner element, is the neutral term. Both a union and the "copper collar" are things that are used to gain control. The Anaconda Company used the copper collar to gain control of the papers and legislature, and the miners wanted to establish a union to gain some control over their working conditions.
See also
[edit]- Anaconda Copper Mine (Montana)
- Anaconda Copper Mine (Nevada)
- Anaconda Smelter Stack
- International Smelting and Refining Company
- Speculator Mine disaster (1917)
References
[edit]- ^ a b "Anaconda Company | US Copper Producer & Environmental Steward | Britannica". www.britannica.com. Retrieved September 1, 2023.
- ^ Laurie Mercier, Anaconda: Labor, Community, and Culture in Montana's Smelter City (University of Illinois Press, 2001)
- ^ Horace. J. Stevens (1908) The Copper Handbook, v.8, Houghton, Mich.: Horace J. Stevens, p.1457.
- ^ George H. LaBarre Galleries Anaconda Inv# MS1000 Stock
- ^ Ron Chernow, Titan (New York: Random House, 1998), p. 380.
- ^ "Don't expect Rockefeller" (PDF). The New York Times. January 5, 1913.
- ^ Charles Caldwell Hawley (2014). A Kennecott Story. The University of Utah Press. p. 3,108.
- ^ "TimesMachine: Tuesday January 3, 1933 - NYTimes.com". Retrieved September 1, 2023 – via TimesMachine.
- ^ Peck, Merton J. & Scherer, Frederic M. The Weapons Acquisition Process: An Economic Analysis (1962) Harvard Business School, p. 619
- ^ ARTHUR M. LOUIS (April 14, 1986). "The U.S. Business Hall of Fame". Fortune. research associate Rosalind Klein Berlin.
- ^ Malo, Sebastien (September 14, 2020). "9th Circuit trims ARCO's contribution toward Montana Superfund site". Reuters.
- ^ "Nevada residents win $19.5m settlement in toxic waste leak lawsuit". The Guardian. November 6, 2013.
- ^ Lynnette Hintze (March 4, 2015). "End of the line for aluminum plant: Columbia Falls Aluminum Co. permanently closed". The Daily Inter Lake. pp. A1, A8. Retrieved March 4, 2015.[permanent dead link]
- ^ Staff (March 4, 2015). "Aluminum plant history extends back to '50s". The Daily Inter Lake. p. A8. Retrieved March 4, 2015.
- ^ McNay, John. "Breaking the Copper Collar: Press Freedom, Professionalization and the History of Montana Journalism." American Journalism 25, no. 1 (2008): 99–123.
- ^ 1 Work, Clemens P. Darkest before Dawn: Sedition and Free speech in the American West. (Albuquerque: University of New Mexico Press, 2005), 85.
- ^ Richard W. Behan, Plundered Promise: Capitalism, Politics, and the Fate of the Federal Lands. (Washington, DC: Island Press, 2001), 28.
- ^ 3 Holmes, Krys, Susan C. Dailey, and David Walter. Montana: Stories of the Land. (Helena, Mont.: Montana Historical Society Press, 2008), 39.
- ^ Kirby Lambert, Patricia Mullan Burnham, and Susan R. Near. Montana's State Capitol: The People's House. (Helena, Mont.: Montana Historical Society Press, 2002), 1
- ^ Norma Smith, Jeannette Rankin, America's Conscience. (Helena, Mont.: Montana Historical Society Press, 2002), 79.
- ^ Mary Murphy, Mining Cultures: Men, Women, and Leisure in Butte, 1914–41. (Urbana: University of Illinois Press, 1997), 225.
- ^ Fisher, Author. "Montana: Land of the Copper Collar." The Nation (September 5, 1923): 117.
- ^ CUSHMAN, DAN. THE OLD COPPER COLLAR. Baltimore, MD: Ballantine Books, 1957.
- ^ Ivan Doig, Work Song. Riverhead, MT: Riverhead, 2010.
- ^ 7 Work, Clemens P., 86.
- ^ Richard L. Nostrand and Lawrence E. Estaville (eds.), Homelands: A Geography of Culture and Place across America. (Baltimore: Johns Hopkins University Press, 2001), 227.
External links
[edit]- Chris Harvey “Critical Biography…” from WIIS Resources
- Columbia Falls Aluminum Company LLC
- Arch Coal history
- Anaconda Geological Documents Collection American Heritage Center, University of Wyoming
- Anaconda Forest Products Company Records (University of Montana Archives)
- Milltown Oral History Project (University of Montana Archives)