Mine detail: Oronogo

Previously called 'Dunham Ranch'

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Location

Lat / long: 44.04844, -120.74305

Resource(M)

Primary: Mercury
Ore: Cinnabar, Limonite
Gangue: Chalcedony
Discovery year: 1927

Production

Operation type: Unknown
Production size: Small
Development status: Past Producer
Production years: 1937, 1940 - 1941, 1955

Geology

Host rock:Clarno Formation
Host type:Andesite
Alteration processes:Silicification

References

MRDSM055974
DEP10041056
Reference{Deposit:: BROOKS, H. C., 1963, QUICKSILVER IN OREGON: OREGON DEPT. OF GEOLOGY AND MINERAL INDUSTRIES, BULL. 55, 223 P.}{Deposit:: BAILEY, E. H., USGS, PERSONAL FILES}{Deposit:: MERCURY IN OREGON, 1965, USBM IC 8252}{Deposit:: FREDERICK, F., 1945, STATE OF OREGON MAP SHOWING LOCATION OF QUICKSILVER DEPOSITS: OREGON DEPT. OF GEOL. AND MIN. INDUSTRIES, SCALE 1:1,000,000}{Deposit:: 5) GILLULY, J., REED, J.C., AND PARK, C.F.}
ReporterPeterson, Jocelyn A., Gray, Jerry J.