Mine detail: Black Ledge

Previously called ''

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Location

Lat / long: 39.16628, -120.92047

Resource(M)

Tertiary: Manganese
Ore: Rhodonite

Production

Operation type: Unknown
Production size: None
Development status: Occurrence

Geology

References

MRDSM011419
DEP10031791
Reference{Deposit:: D.O.M. BULL. 125, P. 147}{Deposit:: BULL. 152, 1950, P. 162}
ReporterGere, W., Killman, K.; Albers, J.