Mine detail: Helen Mine

Previously called 'Helen Mine-E Mt Muller RidgeHellenOlympic Peninsula Mn - 0530310200'

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Location

Lat / long: 48.08259, -124.00159

Resource(M)

Tertiary: Manganese
Discovery year: 1958

Production

Operation type: Surface
Development status: Past Producer

Geology

References

MRDSM700215
MAS530090023
DEP10130881
Reference{Deposit:: WA. DIV. MINES AND GEOL. BULLETIN 37, 1956, PART II, VOL. 1,}{Deposit:: P. 255.}{Deposit:: U.S. BUREAU OF MINES RI 5530, 1959, P. 35.}
ReporterRidenour, James