Born-Digital or AnalogAnalogTranscriptOphir-Burroughs mine. Central City district colorado Development. R. M. News. Rear. 4, 1876 p.4 c.3 Production, yield; currency value; lessees. R. M. News. Jan. 14,1875 p.4 c.3 History. R. M. News,. Dec. 1,1874 p.4 c.4CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Ophir-Burroughs mine. Central City district colorado, [468062]. Denver Public Library Digital Collections, accessed 16/12/2025, https://digital.denverlibrary.org/nodes/view/1628639
