Born-Digital or AnalogAnalogTranscriptBoulder mining & concentrating company Purchases property of LaCrosse min. mill. & pr. co.,, Four mile creek., Boulder county. R. T'. News. May 28, 1880. p.3 c.1 Rouse's process on John -Jay mine, Boulder co., Colorado. 0CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
