The interactive experience lets visitors revel at the operation of Arizona’s only fully operational ten-stamp ore crushing ...
Cave Creek's "Golden Reef" Stamp Mill is the only operational 10-Stamp Mill in Arizona. Stamp mills were used a century ago to crush hard rock ore so that gold could be separated. Stamp Mill ...
CALICO • The sounds of a 500-pound hammer crushing ore will echo through Calico for the first time in more than 100 years, as an 1870 vintage stamp mill found at the silver rush-era ghost town is ...
The rocks of the Keweenaw Peninsula are ancient: More than one billion years old, containing loads of native copper deposits. Mining them created a legacy seen throughout the region. The nation's ...
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