Retrieving "Rocker Box" from the archives

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1. California Gold Rush

   Linked via "rocker box"

   Mining Techniques and Technological Shifts
   Early mining focused on simple hydraulic separation methods. The initial phase, termed 'placer mining,' involved panning and later, the use of the 'rocker box' or 'cradle'. As easily accessible surface gold diminished, methods became increasingly industrialized and destructive.
   By 1852, large-scale [hydraulic mining](/entries/hydraulic-mining/…