Mine detail: Black Bear

Previously called 'Dry Ridge'

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Location

Lat / long: 40.04065, -123.1661

Resource(M)

Tertiary: Chromium
Other material: Chert, Mica, Psilomelane, Pyrolusite, Quartz
Discovery year: 1953

Production

Operation type: Surface
Development status: Past Producer

Geology

References

MAS61050107
DEP10214592
ReferenceTRENGOVE,R.R.,1960,RECON. CALIF.MN. DEPOSITS;USBM R.I.5579,P
ReporterWestern Field Operations Center (WFOC)