United States Bullion Depository

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Coordinates: 37°53′00″N 85°57′55″W / 37.8832°N 85.96525°W / 37.8832; -85.96525

US Bullion Depository, Fort Knox, Kentucky
U.S. Bullion Depository.jpg
The United States Bullion Depository
Location Gold Vault Rd. and Bullion Blvd., Fort Knox, Kentucky
Area 42 acres (17 ha)
Built by Great Lakes Construction Co.
Architect Louis A. Simon
Architectural style Classical Revival
NRHP Reference # 88000056[1]
Added to NRHP February 18, 1988

The United States Bullion Depository, often known as Fort Knox, is a fortified vault building located within the United States Army post of Fort Knox, Kentucky, used to store a large portion of United States official gold reserves and occasionally other precious items belonging or entrusted to the federal government. It is estimated to have roughly 2.3% of all the gold ever refined throughout human history.[2]


Seal of the U.S. Mint
US Bullion Depository, Fort Knox, Kentucky, Gold Vault Rd. and Bullion Boulevard Fort Knox

In 1933, U.S. President Franklin D. Roosevelt issued Executive Order 6102, which outlawed the private ownership of gold coins, gold bullion, and gold certificates by American citizens, forcing them to sell these to the Federal Reserve. As a result, the value of the gold held by the Federal Reserve increased from $4 billion to $12 billion between 1933 and 1937.[3] This left the federal government with a large gold reserve and no place to store it. In 1936, the U.S. Treasury Department began construction of the United States Bullion Depository at Fort Knox, Kentucky, on land transferred from the military. The Gold Vault was completed in December 1936 for US $560,000. The site is located on what is now Bullion Boulevard at the intersection of Gold Vault Road. The building was listed on the National Register of Historic Places in 1988, in recognition of its significance in the economic history of the United States and its status as a well-known landmark.[4] It is constructed of granite mined at the North Carolina Granite Corporation Quarry Complex.[5]

The first gold shipments were made from January to July 1937. The majority of the United States' gold reserves were gradually shipped to the site, including old bullion and newly made bars made from melted gold coins. Some intact coins were stored. The transfer used 500 rail cars and was sent by registered mail, protected by the U.S. Postal Inspection Service, and the U.S. Treasury Department agents.[citation needed] In 1974, a Washington attorney named Peter David Beter circulated a theory that the gold in the Depository had been secretly removed by elites, and that the vaults were empty. A group of reporters was allowed inside in order to refute the theory, which had gained traction thanks to coverage in tabloid newspapers and on the radio. Other than this 1974 event, no member of the public has been allowed inside.[6]

During World War II, the depository held the original U.S. Declaration of Independence and U.S. Constitution. It held the reserves of European countries and key documents from Western history. For example, it held the Crown of St. Stephen, part of the Hungarian crown jewels, given to American soldiers to prevent them from falling into Soviet hands. The repository held one of four copies (exemplifications) of the Magna Carta, which had been sent for display at the 1939 New York World's Fair, and when war broke out, was kept in the US for the duration.

During World War II and into the Cold War, until the invention of different types of synthetic painkillers, a supply of processed morphine and opium was kept in the Depository as a hedge against the US being isolated from the sources of raw opium.[7]

Construction and security[edit]

Below the fortress-like structure lies the gold vault lined with granite walls and protected by a blast-proof door weighing 25 tons. Members of the Depository staff must dial separate combinations known only to them.[8] Beyond the main vault door, smaller compartments provide further protection.[9] According to a Mosler Safe Company brochure:

The most famous, if not the largest, vault door order came from the Federal government in 1935 for the newly constructed gold depository at Fort Knox, Kentucky. Both the vault door and emergency door were 21-inches thick and made of the latest torch- and drill-resistant material. The main vault door weighed 20 tons and the vault casing was 25-inches thick.[10]

The facility is ringed with fences and is guarded by the United States Mint Police. The Depository premises are within the site of Fort Knox, a US Army post, allowing the Army to provide additional protection. The Depository is protected by layers of physical security, alarms, video cameras, microphones, mine fields, barbed razor wire, electric fences, heavily armed guards, and the Army units based at Fort Knox, including unmarked Apache helicopter gunships of 8/229 Aviation based at Godman Army Airfield, the 19th Engineer Battalion, formerly training battalions of the United States Army Armor School, and the 3rd Brigade Combat Team of the 1st Infantry Division, totaling 30,000 soldiers, with associated tanks, armored personnel carriers, attack helicopters, and artillery.

There is an escape tunnel from the lower level of the vault to be used by someone who has been accidentally locked in.[6]

For security reasons, no visitors are allowed inside the depository grounds. This policy has been enforced ever since the vault opened, and the only exception was an inspection by members of the United States Congress and the news media on September 23, 1974 led by then Director of the United States Mint, Mary Brooks.[6]


As of April 2016, Fort Knox holdings are 4,582 metric tons (147.3 million oz. troy).[11] At the rate of $1,226.60 an ounce[12] it is worth about $180 billion.

The depository also holds monetary gold coins.[citation needed] The 1933 Double Eagle was also a temporary resident after transfer from 7 World Trade Center in July 2001, until its sale in July 2002 for $7.59 million. Sometime in 2004, 10 additional allegedly stolen 1933 Double Eagles were transported to Fort Knox for safekeeping.[citation needed]

Not all the gold bars held in the depository are of exactly the same composition. The mint gold bars are nearly pure gold. Bars made from melted gold coins, called "coin bars", are the same composition as the original coins, which is 90% gold. Unlike many .999 fine gold bullion coins minted in modern times for holding-purposes today, the coin alloy for pre-1933 US coins, which were intended for circulation, was a tougher and wear-resistant .900 fine alloy (balance copper) used for all US gold coins since 1837. (See crown gold for further gold coin alloy history.)

The US holds more gold than any other country, with about 8,133 metric tons in total (not just at Fort Knox), or about 2.4 times that of the next leading country, Germany (which in 2014 owned 3,387.1 metric tons).[13]

Popular culture[edit]

The Meade County Bank in Muldraugh, KY resembles the bullion depository's exterior design.

The bullion depository has become a symbol of an impregnable vault, leading to phrases such as "locked up tighter than Fort Knox" or "safer than Fort Knox". Many business names in the surrounding areas are references to the bullion depository. Also, the gold stored there has become a symbol of a vast amount, leading to the phrase "not for all the gold in Fort Knox" as a reference for not doing something under any circumstances.

  • The 1937 RKO Lee Tracy film Behind the Headlines climaxes in a plan to steal gold bars en route from Washington, D.C. to Fort Knox.
  • The 1951 Abbott and Costello film Comin' Round the Mountain has the duo using a treasure map to find a stash of gold. When they finally reach the gold at the end of the film, they find themselves in the middle of Fort Knox and are immediately arrested. The 1951 Warner Bros. short 14 Carrot Rabbit featuring Bugs Bunny and Yosemite Sam follows a similar routine, with Sam being led away by guards at the end. Bugs is also under suspicion, but slips away on a large boat.
  • The popular 1959 Ian Fleming-written James Bond novel Goldfinger, and the 1964 movie of the same name, are about a criminal plot called "Operation Grand Slam" to break into the U.S. Bullion Depository. In the book, Auric Goldfinger's plan is to steal the gold. In the movie, the audience is initially led to believe Goldfinger is going to steal the gold, but the real plot is to render the gold contained in the Depository radioactive and useless with a nuclear device, crippling the economy and driving up the price of the gold Goldfinger already possesses.
  • In the 2000 film Battlefield Earth, a group of humans, enslaved by an alien race called the Psychlos, trick them into thinking they're "mining" for gold by breaking into the Bullion Depository and delivering them the gold that's stored there.
  • In the Soviet comedy western A Man from the Boulevard des Capucines Billy says, "The heart of Miss [Diana] Little is locked tighter than Fort Knox." After a few moments, when Diana shows sympathy to Mr. First, someone remarks to Billy: "Seems Fort Knox has fallen."
  • In Star Trek: Voyager, season 5, episodes 15 and 16 ("Dark Frontier"), Captain Kathryn Janeway hatches a plan to steal a transwarp coil from a Borg ship, calling it Operation Fort Knox. The episode explains the depository's history, and that in the 22nd century, the Fort Knox facility was converted into a museum when a new world economy took shape.
  • In Season 1 of America's Book of Secrets, an episode titled "Fort Knox" that aired February 4, 2012 discusses a brief history of Fort Knox, some unique facts, along with legends, rumors, and conspiracies.[14]
  • Samsung Knox, an enterprise mobile security solution developed by Samsung Group is named after Fort Knox.[15]

See also[edit]


  1. ^ National Park Service (2010-07-09). "National Register Information System". National Register of Historic Places. National Park Service. 
  2. ^ 4,176 tones / 183,600 tones = 2.3%
  3. ^ Ahamed, Liaquat (2009). Lords of Finance: The Bankers who Broke the World. London: Penguin Books. p. 474. ISBN 978-1-59420-182-0. 
  4. ^ "National Register of Historic Places Nomination Form: U.S. Bullion Depository, Fort Knox, Kentucky" (PDF). October 20, 1987. Retrieved 2013-01-20. 
  5. ^ David W. Parham and Jim Sumner (November 1979). "North Carolina Granite Corporation Quarry Complex" (pdf). National Register of Historic Places - Nomination and Inventory. North Carolina State Historic Preservation Office. Retrieved 2015-05-01. 
  6. ^ a b c "Gold all there when Ft. Knox opened doors". Numismatic News. Retrieved December 21, 2011. 
  7. ^ "Fort Knox: Secrets Revealed". H2 History Channel. 2007. 
  8. ^ Day, Teresa (Jan 30, 2005). Fun With the Family Kentucky: Hundreds of Ideas for Day Trips with the Kids. Globe Pequot. p. 30. Retrieved 2013-05-07. 
  9. ^ "U.S. Treasury - Fact Sheet on the Fort Knox Bullion Depository". Archived from the original on 1 February 2008. 
  10. ^ A History of Mosler. Mosler, Inc., Form 9983-5M-1099. 1999. 
  11. ^ Bureau of the Fiscal Service (October 31, 2014). "Status Report of U.S. Treasury-Owned Gold". US Department of the Treasury. 
  12. ^ "Historical Gold Charts and Data - New York Fix". Retrieved May 25, 2016. 
  13. ^ "Top 10 nations stockpiling gold". Retrieved January 18, 2015. 
  14. ^ "America's Book Of Secrets Episode Guide - Season 1 - HISTORY.com". HISTORY.com. 
  15. ^ Hubert Nguyen (February 25, 2013). "Samsung KNOX Provides Privacy To BYODUsers". UberGizmo. Retrieved 21 April 2013. 

External links[edit]