Gold mining
Gold minerals
Gold ore
Placer surface mining
Gold panning
Gold panning at Bonanza Creek, Yukon, Canada
Placer gold mining, Korea, ca. 1900
Man panning for gold in Madagascar
Rockers and sluice mining
Sluice box
Riffles with gold dust and gravel
Rocker box (cradle)
Rocker box (cradle)
Beach miners, Nome, Alaska
Beach miners, Nome, Alaska
Beach miners, Nome, Alaska
Hydraulic mining
Hydraulic monitor
Hydraulic monitor
Underground mining
Technology
Pan, cradle, Long Tom, and pump
Steam point, for thawing frozen ground
Section of a drift mine, showing the use of thawing
