Born-Digital or AnalogAnalogTranscriptChicago mine. Park county, Colorado Development; tunnels Columbia number on mine.. 8.M.News.S8pt.2,1884 History; activities. Activities. R.M.News.Ang.11,1885 p.6 c.3 Character of ore; proposed ore chute. tunnel to be underneath. H.M.News.Nov.11,1885 p.6 c.3 Logansport tunnel to connect. 9CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Chicago mine. Park county, Colorado, [155974]. Denver Public Library Digital Collections, accessed 13/12/2025, https://digital.denverlibrary.org/nodes/view/1326566
