Born-Digital or AnalogAnalogTranscriptEmpire tunnel (Clear Creek county) See. Times Je 16, 1901 p.11 c.2 Times Ag 12, 1901 p.9 c.2 Times S 16, 1901 p.9 c.2 Times S 22, 1901 p.10 c.6 Times S 29, 1901 p.24 c.2 Mi-WY SC n-5,10CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Empire tunnel (Clear Creek county), [238243]. Denver Public Library Digital Collections, accessed 21/01/2026, https://digital.denverlibrary.org/nodes/view/1481216
