https://motherboard.vice.com/en_us/article/594bea/americas-stash-of-gold-coins

Fort Knox is for American gold. The U.S. Mint facility in West Point, New York, it seems, is for foreign gold.

A new cache of documents have been released via the Freedom of Information Act that detail the U.S. government’s collection of approximately 4,686,358 foreign gold coins, held just a few hours drive from Manhattan along the banks of the Hudson River. British sovereigns, French francs, German marks, and many more coins (some now out-of-circulation) can be found within its vaults. Many of the gold coins were supposed to be melted into gold bars but instead, the government decided to store them in bags.