Mine detail: Bertha Group

Previously called ''

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Location

Lat / long:

33.82535, -114.88721

Resource(M)

Tertiary:

Manganese

Production

Operation type:	Unknown
Development status:	Unknown

Geology

References

MAS	60650017
DEP	10236896
Reference	U.S. BUREAU OF MINES RI 5579, 1960, P. 37.
Reporter	Ridenour, James