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cr-20-abriggs.pdf
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59.29Mb
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Helvetia-Rosemont: Arizona’s ...
Author
Briggs, D.F.Affiliation
Arizona Geological SurveyIssue Date
2020Keywords
Arizona Geological SurveyArizona Geological Survey Contributed Reports
Historic
copper
mining
Helvetia
Pima County
Rosemont
Santa Rita Mountains
Tucson