Gold was discovered in massive, commercially viable quantities across Montana, sparking explosive nineteenth-century gold rushes that fundamentally shaped the history, settlement, and eventual statehood of the region. Major strikes in locations like Bannack, Virginia City, and Helena drew tens of thousands of prospectors during the 1860s, extracting millions of ounces of gold from both rich stream gravels and deep underground lode veins. This historic mineral wealth earned Montana its enduring nickname, the Treasure State, and left behind an extensive legacy of ghost towns, mining camps, and cultural heritage sites.