Man as Geomorphic Agent: Hydraulic Mining
in the American West." Pacific Historian, 5 16.
Borehole hydraulic mining
is an emerging technology that differs from traditional underground tunnel mining and open-cast mining.
methods mobilize enormous volumes of sediment and native sediment-bound mercury.
In the Malakoff Diggings, once the scene of intensive hydraulic mining
that ripped the hillsides for their hidden gold, Lavenson found the sharp gouges softening as rain smoothed the hard edges and plants gradually reclaimed the earth.
15 (that event was still receding when the photo was taken) or simply a result of licensed hydraulic mining
going on upstream at the time of photo acquisition.
The products divested by Terex in the deal include hydraulic mining
excavators, electric drive mining trucks, track and rotary blasthole drills, and the highwall miner, as well as the related parts and aftermarket service businesses, including the company-owned distribution locations.
At the Sutter Gold, filled with history and interesting artefacts, visitors can experience a comprehensive look into gold mining processes and its historical progression from gold planning and hydraulic mining
to hard rock techniques.
Using the hydraulic mining
machines, the windy picks, was hard work.
Water for placer mining, especially hydraulic mining
, depended on natural and artificial storage of snow melt run-off and was a critical factor in placer gold production.
He was general manager of the Terex O&K large hydraulic mining
Ironically, my great-grandfather's house was built just south of the valley's mother seam, and might have survived the hydraulic mining
that flushed away all other traces of occupation in a brief boom in the 1970s, had it not burnt down in 1963.