The United States Bullion Depository, often known as Fort Knox, is a fortified vault building located next to the United States Army post of Fort Knox, Kentucky. It is operated by the United States Department of the Treasury. The vault is used to store a large portion of the United States' gold reserves as well as other precious items belonging to or in custody of the federal government. It currently holds roughly 147 million troy ounces (4,580 metric tons) of gold bullion, over half of the Treasury's stored gold. Other US Bullion Depository sites include the West Point Mint, which currently holds 54 million ounces (or 22%) of the nation's gold, and the mints in Denver, Philadelphia, and San Francisco, holding lesser portions. The United States Mint Police is responsible for guarding all F