Mine detail: Fort Seward Mine

Previously called 'Woods Mine'

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Location

Lat / long: 40.20455, -123.70552

Resource(M)

Tertiary: Manganese, Silica
Other material: Chert, Hematite, Psilomelane, Quartz, Rhodochrosite
Discovery year: 1917

Production

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

Geology

References

MRDSW017570
MAS60230006
DEP10212168
Reference{Deposit:: TRASK-GEO DESCRIPT MN DEPS OF CAL-CAL DIV OF MINES BUL 152-A}{Deposit:: TRENGOVE-RECON OF CAL MN DEPS-USBM RPT OF INVEST 5579-1960}{Deposit:: JENKINS-MN IN CALIF-CAL DIV OF MINES BUL 125-DEC 1943}{Deposit:: DAVIS & WOODFORD-UNPUB RPT CAL STATE COUNCIL FOR DEFENSE-191}
ReporterNiemi