Born-Digital or AnalogAnalogTranscriptHecla mine (Gilpin county) See. Times Jy 12, 1898 p.6 c.5 Times N 19, 1899 p.4 c.1 Times Je 13, 1900 P 9 c 3 Times Ag 19, 1900 Times S 1, 1900 Times Ap 15, 1901 p.9 c.3CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Hecla mine (Gilpin county), [303881]. Denver Public Library Digital Collections, accessed 14/02/2026, https://digital.denverlibrary.org/nodes/view/1440673
