Mine detail: Oro Grande

Previously called ''

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Location

Lat / long:

42.66704, -123.29004

Resource(M)

Primary:	Gold
Tertiary:	Arsenic
Gangue:	Talc
Discovery year:	1959

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
Production years:	1959-1966

Geology

Host type:	Serpentinite
Alteration processes:	Talc

References

MRDS	M061666
DEP	10043151
Reference	{Deposit:: RAMP, L. AND PETERSON, N.V., 1979, GEOLOGY AND MINERAL RESOURCES OF JOSEPHINE COUNTY, OREGON; ODGMI BULL. 100, 45P}{Deposit:: BROOKS, H.C. AND RAMP, L., 1968, GOLD AND SILVER IN OREGON; ODGMI BULL. 61, P. 232}
Reporter	Johnson, Maureen G., Smith, Roscoe M. And Ferns, Mark L. (Brooks, Howard C.), Gray, Jerry J.