Mine detail: Potomac

Previously called ''

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Location

Lat / long: 47.98232, -121.36593

Resource(M)

Primary: Gold, Silver, Copper, Lead, Zinc
Tertiary: Arsenic
Ore: Chalcopyrite, Galena, Sphalerite
Gangue: Quartz
Orebody form: VEIN

Production

Operation type: Unknown
Production size: None
Development status: Occurrence

Geology

Host rock:Grotto Batholith
Host type:Tonalite
Tectonic:Cascade Volcanic Arc
Alteration processes:Tonalite Is Bleached

References

MRDSMP00171
DEP10048573
Reference{Deposit:: JOHNSON, F.L., DENTON, D.K., IVERSON, S.R., MCCULLOCH, R.B., STEBBINS, S.A., AND STOTELMEYER, R.B., 1983, MINERAL RESOURCES OF THE GLACIER PEAK RARE II AREA (NO. L6031), SNOHOMISH COUNTY, WASHINGTON: U.S. BUREAU OF MINES OPEN-FILE REPORT MLA 75-83, P. 27}{Reserve-Resource:: JOHNSON AND OTHERS}
ReporterPeterson, Jocelyn A.