Born-Digital or AnalogAnalogTranscriptBorton mine. Gilpin co colorado Discovery, operation, yield to 1880: stone.History colorado daily central city register Ore sent to Miley's mill. Dy.Cent.City Reg.Apr.11,1871. p.1 c.2 Consolidation negotatioas pending. R.M.News.Sept.20,1877 p.4 c.5 0CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Borton mine. Gilpin co colorado, [9385]. Denver Public Library Digital Collections, accessed 22/01/2026, https://digital.denverlibrary.org/nodes/view/1164962
