Mine detail: Mid Range

Previously called ''

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Location

Lat / long:

48.4851, -120.59813

Resource(M)

Primary:	Zinc, Silver, Copper, Gold
Ore:	Chalcopyrite, Sphalerite
Gangue:	Pyrite, Pyrrhotite, Quartz

Production

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

Geology

Host type:

Granite

Structure:

The Golden Horn Batholith Was Intruded Into The Hozameen Fault, The Major Fault Bounding The Southwestern Side Of The Methow Basin. Radiometric Dating Suggests That Magmatic Crystallization Occured At Approximately 47 M.Y. K-Ar Biotite, Fission-Track Allanite, Rb-Sr Isochron Ages That Fall Between 38 And 42 M.Y. Probably Represent The Age Of Postcrystallization Hydrothermal Alteration (Stoffel And Mcgroder, 1990).

References

MRDS	SP00253
DEP	10056010
Reference	{Deposit:: DERKEY, R.E.; JOSEPH, N.L.; LASMANIS, R., 1990, METAL MINES OF WASHINGTON-PRELIMINARY REPORT: STATE OF WASHINGTON, DEPARTMENT OF NATURAL RESOURCES, DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, 577 P.}{Deposit:: HUNTTING, M. T., 1956, INVENTORY OF WASHINGTON MINERALS-PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, 428 P.; V. 2, 67 P.}{Deposit:: STOFFEL, K.L., MCGRODER, M.F., COMPILERS, 1990, GEOLOGIC MAP OF THE ROBINSON MOUNTAIN 1:100,000 QUADRANGLE, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-5, 39 P., 1 PL.}{Deposit:: WASHINGTON DIVISION OF MINES AND MINING, 1941, DIRECTORY OF WASHINGTON MINING PROPERTIES: WASHINGTON DIVISION OF MINES AND MINING INFORMATION CIRCULAR 7, 74 P.}
Reporter	Berger, Mary A., Frank, Dave