Mining equipment: Imagine the noise as each heavy stamp smashed into rocks. The belt-driven wheel turned the shaft. Cams elevated each stamp in turn, then released them to drop and crush the ore. The fine material could then be processed for gold. Parts of this stamp mill were made in 1911 in San Francisco. It was brought to Lee Vining from the Log Cabin Mine, though never actually used at that site.
I love machines. In 1918, this gas-powered shovel to start digging a proposed 30-mile canal to irrigate up to 60,000 acres of government land. After 7.5 miles of the ditch were completed, it was tested. The porous sandy soil only held water for 2 miles. Construction ceased.
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