Born-Digital or AnalogAnalogTranscriptWashington and La Plata mining company Files charter ; office at Durango, Colorado. R.M.hews. Tune 29, 1883 p.6 c.2 Incorporates to operate, La Plata county Colo. R.M.News. Oct. 22, 1884 p.6 c.3CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Washington and La Plata mining company, [630576]. Denver Public Library Digital Collections, accessed 07/02/2026, https://digital.denverlibrary.org/nodes/view/1663919
