In which area did the mining boom take place?

The mining boom primarily took place in the western United States, particularly in regions like California with the Gold Rush in the mid-19th century, and later in areas such as Nevada, Colorado, and Alaska. Additionally, Australia experienced significant mining booms during the 1850s and again in the late 19th century, driven by gold, silver, and other minerals. These booms led to rapid population growth, economic expansion, and significant social changes in these areas.