Mine detail: Hearst Ranch-Marmolejo Cr. Deposit

Previously called 'Hearst Ranch ProspectHearst Ranch-Marmolejo Creek'

<< Back to the map

Location

Lat / long: 35.69716, -121.16769

Resource(M)

Tertiary: Manganese
Discovery year: 1942

Production

Operation type: Surface
Development status: Occurrence

Geology

References

MRDSM020152
MAS60790006
DEP10262155
Reference{Deposit:: CALIF. STATE MINING BUR. BULLETIN 76, 1918, P. 70.}{Deposit:: CALIF. DIV. MINES BULLETIN 152, 1950, P. 230.}{Deposit:: U.S. BUR. MINE RI 5579, 1960, P. 44.}
ReporterRidenour, James