Mine detail: Brinkerhoffer Mine

Previously called ''

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Location

Lat / long:

37.49632, -121.34852

Resource(M)

Tertiary:	Manganese, Silica
Other material:	Chert, Pyrolusite

Production

Operation type:	Surface-Underground
Development status:	Past Producer
First production started:	1918

Geology

References

MRDS	M020258
MAS	60990001
DEP	10190395
Reference	CAL DIV.MINES AND GEOL.,BULL.152,1950
Reporter	Deino, Al