Mine detail: Horseshoe I

Previously called 'Bower Cave'

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Location

Lat / long:

37.74798, -120.03599

Resource(M)

Primary:	Gold
Secondary:	Zinc, Silver, Copper, Lead
Ore:	Chalcopyrite, Galena, Gold, Pyrite, Sphalerite
Discovery year:	1867

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer
Production years:	1867 , 1879 - 1881 , 1904 - 1913 , 1951 - ?

Geology

Host type:	Slate,Shale
Structure:	Metasedimentary Cleavage Strikes Nw, Dips Sw.

References

MRDS	M009480
DEP	10106866
Reference	{Deposit:: BOWEN, O. E., JR., GRAY, C. H., JR., 1957 , MINES AND MINERAL DEPOSITS OF MARIPOSA COUNTY, CALIFORNIA: CALIF. JOUR. MINES AND GEOLOGY, V. 53 , NOS. 1 AND 2 , PP. 112 - 113 , 270 .}{Deposit:: WALLACE, R. E., MCLENEGAN, J. D., MATSON, E. J., 1957 , THE MINERAL INDUSTRY OF CALIFORNIA IN MINERALS YEARBOOK 1954 , VOLUME THREE, AREA REPORTS: U.S. BUREAU OF MINES, P. 220 .}{Deposit:: MAURER, R. B., WALLACE, R. E., 1956 , THE MINERAL INDUSTRY OF CALIFORNIA IN MINERALS YEARBOOK 1953 , VOLUME 3 , AREA REPORTS: U.S. BUREAU OF MINES, P. 212 .}{Deposit:: AUBURY, L. E., 1904 , REGISTER OF MINES AND MINERALS, MARIPOSA COUNTY CALIFORNIA: CALIFORNIA STATE MINING BUREAU, P. 11 .}{Production:: BOWEN & GRAY 1957 , MAURER & WALLACE, 1956 .}
Reporter	Gere, W., Bowman, J. And Albers, J.