File talk:Hydraulic mining in Dutch Flat, California, between 1857 and 1870.jpg
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Bad link to original image. Image can be found at http://digital.denverlibrary.org/cdm/singleitem/collection/p15330coll22/id/31893/rec/1
Bad link to original image. Image can be found at http://digital.denverlibrary.org/cdm/singleitem/collection/p15330coll22/id/31893/rec/1