The U.S. Mint at Denver is one of only two mints in the United States that manufactures circulating coins, and its output can top 50 million coins a day, making it the world’s largest single producer of coins.
The Denver mint also makes coin dies, the Denver “D” portion of the uncirculated coin sets and commemorative coins authorized by Congress. It stores gold and silver bullion.
The U.S. Mint established an assay office in Denver in 1863 to buy gold dust and nuggets from miners during the Colorado Gold Rush. By 1895, the office was taking in more than $5.6 million in gold and silver deposits each year.
The government built the current building starting in 1904, using a design modeled after a Florentine palace from the Italian Renaissance. The new mint produced 167,371,035 gold and silver coins valued at $27 million during 1906, its first year of operation.
The only other U.S. mint that makes circulating coins is the original one in Philadelphia. Circulating coins represent 90 percent of the mint’s production, or between 14 million and 28 million coins a year.
Free tours are available to learn how coins are designed and manufactured and explore the history of the Denver mint. Reservations are required and are available online.