Mine detail: Columbia

Previously called ''

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Location

Lat / long:

44.82763, -118.20772

Resource(M)

Primary:	Gold, Silver, Copper
Tertiary:	Arsenic, Mercury, Zinc, Antimony
Ore:	Chalcopyrite, Cinnabar, Pyrargyrite, Pyrite, Sphalerite, Stibnite
Gangue:	Calcite, Quartz, Sericite

Production

Operation type:	Unknown
Production size:	Yes
Development status:	Past Producer
Production years:	1897 - 1916

Geology

Host rock:	Elkhorn Ridge Argillite
Host type:	Argillite
Associated type:	Gabbro
Structure:	East-West Striking Thrust Fault, Vein Fills A Normal Fault
Tectonic:	Oceanic Sediments

References

MRDS	M014099
DEP	10032533
Reference	{Deposit:: BROOKS, H. C., AND RAMP, L., 1968 , GOLD AND SILVER IN OREGON: ODGMI, BULL 61 , P. 74 .}{Deposit:: OREGON METAL MINES HANDBOOK, 1939 , ODGMI, BULL. 14 - A, P. 38 .}{Deposit:: BROOKS, H. C., 1963 , QUICKSILVER IN OREGON, ODGMI, BULL. 55 , P. 216 .}{Deposit:: LINDGREN, W., 1901, THE GOLD BELT OF THE BLUE MOUNTAINS OF EASTERN OREGON, USGS ANN. REPT. NO. 2, P. 663}{Production:: W. W. ELMER, JUNE 30 , 1930 .}
Reporter	Lee, W., Bradley, Robin (Walker, George W.), Gray, Jerry J.