Born-Digital or AnalogAnalogTranscriptmines mineral resources colorado summit county Breckenridge and vicinity is called most backward of of mining camps. Times Ag 23, 1901 p.11 c.3 denver Summit county placers. Times S b, 1901 c.2 Sallie barbara mine on Nigger hill. Times z. 17, 1901 p.11 c.4 lgines arouna kokomo. Times b 18, 1901 p.9 c.1 Resumption of work of breckenridge deep Mining company to help district. Times N 8, 1901 p.11 c.1CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
mines mineral resources colorado summit county, [435575]. Denver Public Library Digital Collections, accessed 15/12/2025, https://digital.denverlibrary.org/nodes/view/1429890
