Mine detail: Johe Ranch Mine

Previously called 'Johe Manganese DepositIrish Hills DepositJohe Ranch Deposit'

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Location

Lat / long: 35.26577, -120.76427

Resource(M)

Tertiary: Manganese, Silica
Other material: Chert, Jasper, Psilomelane
Discovery year: 1916

Production

Operation type: Surface-Underground
Development status: Past Producer
First production started: 1917

Geology

References

MRDSW025013
MAS60790011
DEP10213583
Reference{Deposit:: CALIF. STATE MINING BUR. BULLETIN 76, 1918, P. 70.}{Deposit:: CALIF. DIV. MINES BULLETIN 152, 1950, P. 232-233.}{Deposit:: U.S. BUREAU OF MINES RI 5579, 1960, P. 44-45.}
ReporterRidenour, James