this is what is claimed

https://www.usmint.gov/about/mint-tours-facilities/fort-knox

but there are no public tours, so .. who knows.

want a rabbit-hole? use something like duckduckgo and look up: trucks of gold under twin towers

and

fake gold tungsten Russia

There's been a lot of energy used to 'debunk' the second one, but as it happened real-time in the 2000s there were lawsuits of official British commodity services by Russia, covered in all the major papers.

this is what is claimed

https://www.usmint.gov/about/mint-tours-facilities/fort-knox

but there are no public tours, so .. who knows.