Mine detail: Hidden Treasure

Previously called 'SunshineTriangle;'

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Location

Lat / long: 48.1065, -120.042

Resource(M)

Primary: Gold, Silver, Copper
Ore: Chalcopyrite, Galena, Malachite, Sphalerite
Gangue: Calcite, Pyrite, Quartz

Production

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

Geology

Host type:Gneiss
Structure:Intrusion Of The Methow Gneiss Protolith Took Place At Moderate Crustal Levels; The Intrusive Was Later Metamorphosed To Lower Amphibolite Grade With Other Metamorphic Sequences In The Area (Bunning, 1990).

References

MRDSSP00226
DEP10104282
Reference{Deposit:: BUNNING, B.B., COMPILER, 1990, GEOLOGIC MAP OF THE EAST HALF OF THE TWISP 1:100,000 QUADRANGLE, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-9, 51 P., 1 PL.}{Deposit:: HODGES, L.K., 1897, MINING IN THE PACIFIC NORTHWEST: SEATTLE POST INTELLIGENCER, 116 P. [FACSIMILE REPRINTED 1967 IN TWO VOLUMES, MINING IN EASTERN AND CENTRAL WASHINGTON, AND, MINING IN WESTERN WASHINGTON: SHOREY BOOK STORE, SEATTLE, WASHINGTON.]}{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:: LANDES, HENRY; THYNG, W.S.; LYON, D.A.; ROBERTS, MILNOR, 1902, ANNUAL REPORT FOR 1901, IN SIX PARTS; PART-II THE METALLIFEROUS RESOURCES OF WASHINGTON, EXCEPT IRON: WASHINGTON GEOLOGICAL SURVEY, 123 P.}{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.}
ReporterBerger, Mary A., Frank, Dave