Mine detail: Boyer Mine

Previously called 'Wheeler Mine,Shanks and Copps'

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Location

Lat / long:

38.67428, -123.00998

Resource(M)

Tertiary:	Manganese, Silica
Other material:	Chert, Jasper, Psilomelane, Pyrolusite

Production

Operation type:	Underground
Development status:	Prospect
First production started:	1916

Geology

References

MRDS	M020241
MAS	60970004
DEP	10287644
Reference	{Deposit:: CDMG,BULL.76,P.82,(1918)}{Deposit:: CDMG.BULL.152,P.283,(1950)}{Deposit:: USGS FILE,1918}
Reporter	Deino, Al