Mine detail: South Fork Lewis River

Previously called 'Mcmunn Placer'

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Location

Lat / long: 45.81398, -122.31702

Resource(M)

Primary: Gold
Secondary: Platinum
Ore: Gold, Hematite, Limonite, Magnetite
Orebody form: STREAM SEDIMENT DEPOSITS
Discovery year: 1895

Production

Operation type: Unknown
Deposit type: Stream Placer
Production size: Small
Development status: Past Producer

Geology

Host type:Gravel
Associated type:Volcanic Rock (Aphanitic)
Tectonic:Cascade Volcanic Arc

References

MRDSM045077
DEP10037878
Reference{Deposit:: PARDEE, J.T., 1929, PLATINUM AND BLACK SAND IN WASHINGTON, IN CONTRIBUTIONS TO ECONOMIC GEOLOGY 1928: U.S. GEOLOGICAL SURVEY BULLETIN 805, P. 6-9.}{Deposit:: PATTY, E.N., AND GLOVER, S.L., 1921, THE MINERAL RESOURCES OF WASHINGTON, WITH STATISTICS FOR 1919: WASHINGTON GEOLOGICAL SURVEY BULLETIN 21, P. 84-85.}{Deposit:: MERTIE, J.B., JR., 1969, ECONOMIC GEOLOGY OF THE PLATINUM METALS: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 630, P. 101.}{Deposit:: HUNTTING, M.T., 1955, GOLD IN WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 42, P. 118.}
ReporterBlair, Will N., Peterson, Jocelyn A.