The San Francisco Mint, located in San Francisco, CA, is a historic landmark known for its significant role in the production of U.S. coinage. Established in 1854 during the California Gold Rush, the mint was instrumental in converting gold into coins, thereby facilitating commerce and economic growth in the burgeoning western United States. The original building, often referred to as the "Old Mint," survived the 1906 earthquake and fire, earning it the nickname "The Granite Lady." Today, the San Francisco Mint continues to produce proof coinage and commemorative coins, maintaining its legacy as a vital institution in American numismatics.