Investigation of West Belt Copper-Zinc Mines, El Dorado, Amador, Calaveras, and Mariposa Counties, California Page: Title Page
62 p. : ill., maps ; 27 cm.View a full description of this report.
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INVESTIGATION OF WEST BELT COPPER-ZINC MINES
EL DORADO, AMADOR, CALAVERAS,
AND MARIPOSA COUNTIES, CALIF.BY FRANK J. WIEBELT, W. C.
AND SPANGLER RICKERSANBORN, R. R. TRENGOVE,
. . . . . . . . . Report of Investigations 4760
UNITED STATES DEPARTMENT OF THE INTERIOR
Oscar L. Chapman, Secretary
BUREAU OF MINES
James Boyd, Director
Work on manuscript completed October 1950. The Bureau of Mines will welcome reprinting
of this paper, provided the following footnote acknowledgment is made: " Reprinted from
Bureau of Mines Report of Investigations 4760."February 1951
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Wiebelt, Frank J.; Sanborn, W. C.; Trengove, R. R. & Ricker, Spangler. Investigation of West Belt Copper-Zinc Mines, El Dorado, Amador, Calaveras, and Mariposa Counties, California, report, February 1951; [Washington D.C.]. (https://digital.library.unt.edu/ark:/67531/metadc38555/m1/3/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.