Igihe kimwe safiro yajugunywe nk'ibuye.

Safiro yavumbuwe bwa mbere mu kinyejana cya 19 rwagati n'abashakashatsi ba zahabu bashaka zahabu mu ruzi rwa Montana.
Mu mateka, ubucukuzi bwa safiro bwakorewe mu bice bine by'ingenzi byo mu majyepfo ashyira uburengerazuba bwa Montana, umukandara wa Pebble (1865), Dry Cotton Creek (1889), Rock Creek (1892) na Yokogarsh (1895).mu ruzi rwo hejuru rwa Missouri) habayeho kwibumbira muri ubwo bubiko bune Gusa ibibanza bibiri bya safiro biracyatanga safiro.Hasi ni icyatsi kibisi cyubururu kristu hamwe na safiro zifite impande zatoranijwe mububiko bwa Creek.