|Location||West Colfax Avenue and Delaware Street, Denver, Colorado|
|Coordinates||39°44′23″N104°59′30.17″W / 39.73972°N 104.9917139°W Coordinates: 39°44′23″N104°59′30.17″W / 39.73972°N 104.9917139°W|
|Architect||James Knox Taylor|
|Architectural style||Late 19th and 20th century revivals|
|Part of||Civic Center Historic District (ID74002348)|
|NRHP reference No.||72000270 |
|Added to NRHP||February 1, 1972|
|Designated CP||February 27, 1974|
The Denver Mint is a branch of the United States Mint that struck its first coins on February 1, 1906.  The mint is still operating and producing coins for circulation, as well as mint sets and commemorative coins. Coins produced at the Denver Mint bear a D mint mark (as did the Dahlonega Mint, which closed before the Denver branch opened). The Denver Mint is the single largest producer of coins in the world. 
The predecessors of the Denver Mint were the men of Clark, Gruber and Company. During the Pikes Peak Gold Rush, they coined gold dust brought from the gold fields by the miners. In 1858, Austin M. Clark, Milton E. Clark and Emanuel Henry Gruber founded a brokerage firm in Leavenworth, Kansas, and then established an office in Denver at the beginning of the Colorado Gold Rush. Desiring to save on shipping and insurance costs associated with shipping gold back east, the firm opened a private mint. On 25 July 1860, the mint opened in a two-story brick building on the corner of Market and 16th Streets, minting $10 gold pieces at the rate of "fifteen or twenty coins a minute". "On the face is a representation of the peak, its base surrounded by a forest of timber and 'Pikes Peak Gold' encircling the summit. Immediately under its base is the word 'Denver', and beneath it 'Ten D.'. On the reverse is the American Eagle encircled by the name of the firm 'Clark, Gruber & Co.', and beneath the date, '1860'."  : 26–27
A $20 gold coin was added, "the weight will be greater, but the value the same as the United States coin of like denomination". A $5 and a $2.5 gold coin were added, with production reaching $18,000 per week. On the front was the "head of the Goddess of Liberty surrounded by thirteen stars, with "Clark & Company" in the tiara. "Pikes's Peak Gold, Denver" was on the other side, with "5D." or "2 1/2 D."  : 27
In the almost three years of operation, they minted $594,305 worth of Pike's Peak gold in the form of gold coins. Additionally, they purchased 77,000 troy ounces of raw gold, and shipped "large amounts of dust" to the Philadelphia Mint. The building, assaying and minting equipment was formally bought by the US Treasury in April 1863. Clark, Gruber & Co. remained a bank until bought by the First National Bank of Denver in 1865.  : 27
Established by an Act of Congress on April 21, 1862, the United States Mint at Denver opened for business in late 1863 as a United States Assay Office. Operations began in the facilities of Clark, Gruber and Company, located at 16th and Market Streets and acquired by the government for $25,000, which it was simply able to print off at the location.
Unlike Clark, Gruber and Company, though, the Denver plant performed no coinage of gold as first intended.  : 77 One reason given by the Director of the Mint for the lack of coinage at Denver was, "…the hostility of the Indian tribes along the routes, doubtless instigated by rebel emissaries (there being a Civil War) and bad white men."
Gold and nuggets brought there by miners from the surrounding area were accepted by the Assay Office for melting, assaying, and stamping of cast gold bars. The bars were then returned to the depositors as imparted bars stamped with the weight and fineness of the gold. Most of the gold came from the rich beds of placer gold found in the streams and first discovered in 1858, the same year Denver was founded.
When the supply of gold was exhausted from the streams, the emphasis turned to lode mining, uncovering veins of ore with a high percentage of gold and silver. By 1859, the yearly value of the gold and silver deposited at the Assay Office was over $5.6 million. During its early years as an Assay Office, the Denver plant was the city's most substantial structure.
The United States Treasury did not expand its smelting and refining operations at the same rate as the discovery and production of gold. In 1872 a group of businessmen led by Judge Hiram Bond (formerly one of the largest brokers on the New York Gold Exchange), Joseph Miner and Denver Mayor Joseph E. Bates set up a firm Denver Smelting and Refining Works which built an independent complementary plant which processed ore into ingots which were then assayed, weighed and stamped by the Denver Mint.
There was new hope for branch mint status when Congress provided for the establishment of a mint at Denver for gold and silver coin production. The site for the new mint at West Colfax and Delaware streets was purchased on April 22, 1896, for approximately $60,000. Construction began in 1897.
Appropriations to complete and equip the plant were insufficient, and the transfer of assay operations to the new building were delayed until September 1, 1904. Coinage operations finally began on February 1, 1906, advancing the status of the Denver facility to Branch Mint. In addition, before the new machinery to be used at the Mint was installed for use, it was first sent to the St. Louis Exposition of 1904 for display. Silver coins were minted in Denver for the first time in 1906. During the first year, 167 million coins were produced, including $20 gold (double eagle) coins, $10 gold (eagle) coins, $5 gold (half eagle) coins, and assorted denominations of silver coins.
The mint was individually listed on the National Register of Historic Places in 1972. It was further included as a contributing building in the listing of Civic Center Historic District in 1974.   
Today, the Denver Mint produces commemorative coins, coin dies and uncirculated coin sets. It has a production capacity of more than 50 million coins a day and roughly 350 employees. 
Coins of the United States dollar were first minted in 1792. New coins have been produced annually and they make up a valuable aspect of the United States currency system. Today, circulating coins exist in denominations of 1¢, 5¢, 10¢, 25¢, 50¢, and $1.00. Also minted are bullion and commemorative coins. All of these are produced by the United States Mint. The coins are then sold to Federal Reserve Banks which in turn are responsible for putting coins into circulation and withdrawing them as demanded by the country's economy.
The Coinage Act of 1873 or Mint Act of 1873, was a general revision of laws relating to the Mint of the United States. By ending the right of holders of silver bullion to have it coined into standard silver dollars, while allowing holders of gold to continue to have their bullion made into money, the act created a gold standard by default. It also authorized a Trade dollar, with limited legal tender, intended for export, mainly to Asia, and abolished three small-denomination coins. The act led to controversial results and was denounced by critics as the "Crime of '73".
The Dahlonega Mint was a former branch of the United States Mint built during the Georgia Gold Rush to help the miners get their gold assayed and minted, without having to travel to the Philadelphia Mint. It was located at in Dahlonega, Lumpkin County, Georgia. Coins produced at the Dahlonega Mint bear the "D" mint mark. That mint mark is used today by the Denver Mint, which opened in 1897, over three decades after the Dahlonega Mint closed. All coins from the Dahlonega Mint are gold, in the $1, $2.50, $3, and $5 denominations, and bear dates in the range 1838–1861.
A nickel is a five-cent coin struck by the United States Mint. Composed of cupronickel, the piece has been issued since 1866. Its diameter is 0.835 inches (21.21 mm) and its thickness is 0.077 inches (1.95 mm).
The United States Mint is a bureau of the Department of the Treasury responsible for producing coinage for the United States to conduct its trade and commerce, as well as controlling the movement of bullion. It does not produce paper money; that responsibility belongs to the Bureau of Engraving and Printing. The first United States Mint was created in Philadelphia in 1792, and soon joined by other centers, whose coins were identified by their own mint marks. There are currently four active coin-producing mints: Philadelphia, Denver, San Francisco, and West Point.
The dollar coin is a United States coin with a face value of one United States dollar. Dollar coins have been minted in the United States in gold, silver, and base metal versions. Dollar coins were first minted in the United States in 1794.
The Coinage Act of 1792, passed by the United States Congress on April 2, 1792, created the United States dollar as the country's standard unit of money, established the United States Mint, and regulated the coinage of the United States. This act established the silver dollar as the unit of money in the United States, declared it to be lawful tender, and created a decimal system for U.S. currency.
The Colorado State Capitol Building, located at 200 East Colfax Avenue in Denver, Colorado, United States, is the home of the Colorado General Assembly and the offices of the Governor of Colorado and Lieutenant Governor of Colorado.
The New Orleans Mint operated in New Orleans, Louisiana, as a branch mint of the United States Mint from 1838 to 1861 and from 1879 to 1909. During its years of operation, it produced over 427 million gold and silver coins of nearly every American denomination, with a total face value of over US$ 307 million. It was closed during most of the American Civil War and Reconstruction.
The Morgan dollar is a United States dollar coin minted from 1878 to 1904, in 1921, and beginning again in 2021. It was the first standard silver dollar minted since the passage of the Coinage Act of 1873, which ended the free coining of silver and the production of the previous design, the Seated Liberty dollar. It contained 412.5 grains of 90% pure silver. The coin is named after its designer, United States Mint Assistant Engraver George T. Morgan. The obverse depicts a profile portrait representing Liberty, modeled by Anna Willess Williams, while the reverse depicts an eagle with wings outstretched. The mint mark, if present, appears on the reverse above between D and O in "Dollar".
The Seated Liberty dollar was a dollar coin struck by the United States Mint from 1840 to 1873 and designed by its chief engraver, Christian Gobrecht. It was the last silver coin of that denomination to be struck before passage of the Coinage Act of 1873, which temporarily ended production of the silver dollar for American commerce. The coin's obverse is based on that of the Gobrecht dollar, which had been minted experimentally from 1836 to 1839. However, the soaring eagle used on the reverse of the Gobrecht dollar was not used; instead, the United States Mint (Mint) used a heraldic eagle, based on a design by late Mint Chief Engraver John Reich first utilized on coins in 1807.
The Flowing Hair dollar was the first dollar coin issued by the United States federal government. The coin was minted in 1794 and 1795; its size and weight were based on the Spanish dollar, which was popular in trade throughout the Americas.
The San Francisco Mint is a branch of the United States Mint. Opened in 1854 to serve the gold mines of the California Gold Rush, in twenty years its operations exceeded the capacity of the first building. It moved into a new one in 1874, now known as the Old San Francisco Mint. In 1937 Mint operations moved into a third building, the current one, completed that year.
The Charlotte Mint was the first United States branch mint. It was located in Charlotte, North Carolina and specialized in gold coinage.
The United States trade dollar was a dollar coin minted by the United States Mint to compete with other large silver trade coins that were already popular in East Asia. The idea first came about in the 1860s, when the price of silver began to decline due to increased mining efforts in the western United States. A bill providing in part for the issuance of the trade dollar was eventually put before Congress, where it was approved and later signed into law as the Coinage Act of 1873. The act made trade dollars legal tender up to five dollars. A number of designs were considered for the trade dollar, and an obverse and reverse created by William Barber were selected.
The half eagle is a United States coin that was produced for circulation from 1795 to 1929 and in commemorative and bullion coins since 1983. Composed almost entirely of gold, its face value of five dollars is half that of the eagle coin. Production of the half eagle was authorized by the Coinage Act of 1792, and it was the first gold coin minted by the United States.
The Coinage Act of 1965, Pub. L. 89–81, 79 Stat. 254, enacted July 23, 1965, eliminated silver from the circulating United States dime and quarter dollar coins. It also reduced the silver content of the half dollar from 90 percent to 40 percent; silver in the half dollar was subsequently eliminated by a 1970 law.
The United States Assay Commission was an agency of the United States government from 1792 to 1980. Its function was to supervise the annual testing of the gold, silver, and base metal coins produced by the United States Mint to ensure that they met specifications. Although some members were designated by statute, for the most part the commission, which was freshly appointed each year, consisted of prominent Americans, including numismatists. Appointment to the Assay Commission was eagerly sought after, in part because commissioners received a commemorative medal. These medals, different each year, are extremely rare, with the exception of the 1977 issue, which was sold to the general public.
The Liberty Head double eagle or Coronet double eagle is an American twenty-dollar gold piece struck as a pattern coin in 1849, and for commerce from 1850 to 1907. It was designed by Mint of the United States Chief Engraver James B. Longacre.
The Susan B. Anthony dollar is a United States dollar coin minted from 1979 to 1981 when production was suspended due to poor public acceptance, and then again in 1999. Intended as a replacement for the larger Eisenhower dollar, the new smaller one-dollar coin went through testing of several shapes and compositions, but all were opposed by the vending machine industry, a powerful lobby affecting coin legislation. Finally, a round planchet with an eleven-sided inner border was chosen for the smaller dollar.