Mine detail: Tan Oak No 1

Previously called 'Helmke Manganese Group'

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Location

Lat / long:

40.15565, -123.53052

Resource(M)

Primary:

Manganese

Production

Operation type:	Unknown
Development status:	Prospect

Geology

References

MRDS	M020362
MAS	61050768
DEP	10214916
Reference	PARKER D. TRASK APRIL 7 1942
Reporter	Western Field Operations Center (WFOC)