Mine detail: Ninety Nine Prospect

Previously called 'Ninetynine'

<< Back to the map

Location

Lat / long: 48.70621, -120.71009

Resource(M)

Primary: Gold
Secondary: Silver, Lead
Ore: Galena, Pyrite
Gangue: Quartz
Orebody form: VEIN
Discovery year: 1900

Production

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

Geology

Host rock:Harts Pass Group, Harts Pass Formation;Harts Pass Group, Harts Pass Formation
Host type:Quartzite
Tectonic:Cascade Volcanic Arc

References

MRDSM700070
DEP10104138
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. 178.}{Deposit:: MOEN, W.S., 1969, MINES AND MINERAL DEPOSITS OF WHATCOM COUNTY, WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 57, P. 120-121.}{Deposit:: STOFFEL, K.L., AND MCGRODER, M.F., 1990, GEOLOGIC MAP OF THE ROBINSON MTN. 1:100,000 QUADRANGLE, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-5, SCALE 1:100,000.}
ReporterCaress, Mary E. (Evarts, Russ), Peterson, Jocelyn A.