Mine detail: Black Powder

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Location

Lat / long:

38.85266, -122.45357

Resource(M)

Tertiary:

Manganese

Production

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

Geology

References

MRDS	M008886
DEP	10030630
Reference	{Deposit:: CALIF. B. 125, 1943, P. 124}{Deposit:: CALIF. BULL. 152, PP. 88-89}
Reporter	Gere, W., Killman, K.; Albers, J.