Mine detail: Jones Group-Nos.1-9

Previously called 'Jones Deposits West-No. Iii,Iv,VJones Deposits East-I&Ii'

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Location

Lat / long: 37.40022, -121.46412

Resource(M)

Tertiary: Manganese, Silica
Other material: Chert, Goethite, Limonite, Psilomelane, Rhodochrosite
Discovery year: 1909

Production

Operation type: Surface
Development status: Past Producer
First production started: 1941

Geology

References

MRDSW025096
MAS60850017
DEP10262687
Reference{Deposit:: TRASK-GEO DESCRIPT MN DEPS.OF CAL-CAL.DIV.OF MINES,BUL.152,A}{Deposit:: VOLIN-INVESTIG BLK WONDER MN.DEPS-USBM RPT OF INVEST,5254 SE}{Deposit:: JENKINS-MN IN CALIF-CAL.DIV.OF MINES BUL 125 DEC 1943}{Deposit:: TRENGOVE-RECON OF CAL MN DEPS-USBM RPT OF INVEST.5579-1960}
ReporterNiemi