Born-Digital or AnalogAnalogTranscriptmines mineral resources colorado Silver basin district Development of mines; list. R. bi. News. July 28, 1880 p.3 c.2 Activities; description, Nancy Lee mine. R. M. News. Oct. 4, 1881 p.7 c.l Denver & Rio Grande railroad mining. co. invests in mines. R. M. News. Apr. 21, 1882 p.2 c.3CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
