Hydraulic placer mining using water to wash out ore for gold and silver, Alma, Colorado, USA about 1900

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Size: 2598px × 2719px
Photo credit: © Chris Howes/Wild Places Photography / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1900, 1900s, alma, america, colorado, gold, high, hydraulic, jet, miner, mining, ore, placer, pressure, silver, usa, water