Born-Digital or AnalogAnalogTranscriptWashington number two mine, Aspen district Colorado. Cost of sinking shaft ; develops to catch Spar vein. R.M.News. May 29, 1884 p.6 c.2 High grade ore; description. R.M.News. Oct. 11, 1885 p.18 c.1 Transfer. R.M.News. Feb. 27, 1884 p.6 c.3 Burros carry ore from Aspen mountain management. R.M.News. Mar. 17CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Washington number two mine, Aspen district Colorado, [630735]. Denver Public Library Digital Collections, accessed 18/01/2026, https://digital.denverlibrary.org/nodes/view/1664591
