Mine detail: Last Hope Group

Previously called ''

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Location

Lat / long: 46.35759, -122.11675

Resource(M)

Primary: Copper, Silver
Secondary: Gold, Lead
Ore: Chalcopyrite, Galena, Gold, Pyrite
Gangue: Quartz, Talc
Orebody form: BRECCIA MATRIX

Production

Operation type: Unknown
Production size: Unknown
Development status: Occurrence

Geology

Host rock:Spirit Lake Pluton, Main Phase
Host type:Diorite
Tectonic:Cascade Volcanic Arc

References

MRDSM700178
MAS530590059
DEP10095762
Reference{Deposit:: HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 77.}{Deposit:: MOEN, W.S., 1977, ST. HELENS AND WASHOUGLA MINING DISTRICTS OF THE SOUTHERN CASCADES OF WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES INFORMATION CIRCULAR 60, P. 17, 24.}{Deposit:: ASHLEY, R.P., AND PETERSON, J.A., 1991, U.S. GEOLOGICAL SURVEY, FIELD EXAM}
ReporterCaress, Mary E. (Evarts, Russ), Peterson, Jocelyn A., Ridenour, James, Causey, J. Douglas