Born-Digital or AnalogAnalogTranscriptTiffin mining company Activities ; assays, Summit county. R. M. News. Aug. 28, 1868. p.4 c.2 Owner of lodes ; list ; act of congress approved, 1866, Union district, Colorado. R. M. News. Nay 8,1874 p.2 c.4CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
