Mine detail: Buena Vista

Previously called 'Umpqua'

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Location

Lat / long:

43.01732, -122.93309

Resource(M)

Primary:	Mercury
Ore:	Cinnabar
Gangue:	Calcite, Chalcedony, Limonite, Pyrite
Discovery year:	1918

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
Production years:	1928 - 1930, 1934, 1943

Geology

Host rock:	Colestin-Fisher
Host type:	Andesite
Associated type:	Andesite
Alteration processes:	Host Rocks Are Partly Altered To Clay And Calcite And Impregnated With Calcite And Chalcedony Veinlets

References

MRDS	M055876
DEP	10103833
Reference	{Deposit:: BROOKS, H. C., 1963, QUICKSILVER IN OREGON: OREGON DEPT. OF GEOLOGY AND MINERAL INDUSTRIES, BULL. 55, 223 P.}{Deposit:: MERCURY IN OREGON, 1965, USBM IC 8252, TABLE 26, P. 319.}{Deposit:: RAMP, L., 1972, GEOLOGY AND MINERAL RESOURCES OF DOUGLAS COUNTY, OREGON: ODGMI BULL. 75, P. 51.}{Deposit:: OREGON METAL MINES HANDBOOK, 1940: ODGMI BULL. 14-C VOL. 1-COOS, CURRY, AND DOUGLAS COUNTIES}
Reporter	Peterson, Jocelyn A., Ferns, Mark L. (Brooks, Howard C.), Gray, Jerry J.