Born-Digital or AnalogAnalogTranscriptOphir mine. Gilpin co. Colorado. Shaft depth. , 1877 p.4 c.3 Description; rich ore. R. M. News. Sept. 30,1874 p.4 c.3 Output; Burroughs lode. R. M. News. Oct. 8,1874 p.4 c.4 Monthly production; coin value. R. M. News. Oct. 30,1874 p.4 c.3CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
