Born-Digital or AnalogAnalogTranscriptEmma mine. Rock Creek district colorado Exhibit, National exposition ., Denver. R. M. News. Sept. 4, 1882 p.8 c.4 Ore exhibit, Denver exposition. R. M. News. Sept. 19, 1883 p.2 c.1 Discovery, Boulder creek. R. M. News. June 12, 1882 p.3 c.1CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Emma mine. Rock Creek district colorado, [237905]. Denver Public Library Digital Collections, accessed 13/05/2025, https://digital.denverlibrary.org/nodes/view/1480379
