Mine detail: Old Mass

Previously called ''

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Location

Lat / long: 46.8139, -89.10757

Resource(M)

Tertiary: Copper, Silver
Discovery year: 1856

Production

Operation type: Underground
Development status: Past Producer
First production started: 1857

Geology

References

MAS261310020
DEP10243231
Reference{Deposit:: BUTLER,B.S. AND BURBANK,W.S. (1929) THE COPPER DEPOSITS OF M}{Deposit:: : USGS PROF. PAPER 144.}{Deposit:: WHITLOW,J.W. (1974) GEOLOGIC MAP OF THE GREENLAND AND ROCKLA}{Deposit:: RANGLES, ONTONAGON COUNTY, MICHIGAN. USGS MAP MF-596.}{Deposit:: PATRICK,J.L.(1966) REPORT ON THE CALEDONIA: UNPUBLISHED COMP}{Deposit:: ORT, WHITEPINE COPPER COMPANY.}{Deposit:: MILLER,E.W. (1958) HISTORICAL RESUME OF THE MASS CONSOLIDATE}{Deposit:: G COMPANY, ONTONAGON, MICHIGAN: UNPUBLISHED COMPANY REPORT,}{Deposit:: AND HECLA, INC.}{Deposit:: POLLOCK,J. (1959) PRELIMINARY REPORT ON THE CALEDONIA PROJEC}{Deposit:: BLISHED COMPANY REPORT, CALUMET AND HECLA CONSOLIDATED MININ}{Deposit:: WHITE,W.S.(1968) THE NATIVE-COPPER DEPOSITS OF NORTHERN MICH}{Deposit:: N ORE DEPOSITS OF THE UNITED STATES,1933-1967. JOHN D.RIDGE,}{Deposit:: THE AMERICAN INSTITUTE OF MINING, METALLURGICAL,AND PETROLE}{Deposit:: NEERS, INC. 1970.}{Deposit:: BRODERICK,T.M., HOHL,C.D., EIDEMILLER,H.N. (1946), RECENT CO}{Deposit:: IONS TO THE GEOLOGY OF THE MICHIGAN COPPER DISTRICT: IN ECON}{Deposit:: OLOGY AND THE BULLETIN OF THE SOCIETY OF ECONOMIC GEOLOGISTS}{Deposit:: XLI.}
ReporterMichigan State University