Mines & mineral resources, Colorado boulder county Old Spanish diggings found, 1855-1859. Stone.History.Colo.v.l p.229 Gold discovery; names of prospectors, 1859. Hall.Hist.Colo.v.1 p.181 Location, Deadwood placers, 1859. Hall.Hist.Colo.v.1 p.186 Mining report, Constitutional convention. Hall.Hist.Colo.v.1 p.303 Description, ore veins, Hall.Hist.Colo.v.2 p.60 History. Hall.Hist.Colo.v.3 p.288
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