![](http://www.alamy.com/thumbs/6/0C02F4A4-E5ED-4B09-85B7-FF2ECAC7AD79/EF3APX.jpg)
Hydraulic placer mining using water to wash out ore for gold and silver, Alma, Colorado, USA about 1900
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