<Tr> <Th> Added to NRHP </Th> <Td> February 18, 1988 </Td> </Tr> <P> 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 . The vault is 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 hold roughly 2.3% of all the gold ever refined throughout human history . </P> <P> 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 . 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 . It is constructed of granite quarried at the North Carolina Granite Corporation Quarry Complex . </P> <P> 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 . 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 . </P>

Where did the gold at fort knox come from
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