Born-Digital or AnalogAnalogTranscriptMining. Hydraulic. Placer Placer gold and how it is secured. Good aritcle. Frontier Times v.28 #12 S 1951 P.343-347 colorado woman wins ninth annual "world Gold panning championship." 1969 "The geology of the gold placers of Colorado," thesis (School of Mines) by Ben H. Parker, Jr. (classified T9o5; 4 vols.) Colorado School of Mines Library Feature on Vic Crouch and his gold panning business on Colorado 119 near Central City. RMN Je 24, 1973 p.8CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
