Mine detail: Black Bear

Previously called 'Old Dan Green'

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Location

Lat / long:

42.5826, -123.61755

Resource(M)

Primary:	Gold, Silver
Tertiary:	Copper
Ore:	Chalcopyrite, Pyrite
Gangue:	Quartz
Orebody form:	LENS, KIDNEY

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer
Production years:	1939-1940

Geology

Host rock:	Rogue Volcanics
Host type:	Greenstone
Associated type:	Dunite
Structure:	Near Thrust Contact With Amphibolite
Alteration processes:	Oxidized Ore Selectively Mined

References

MRDS	M060741
DEP	10109668
Reference	{Deposit:: RAMP, L. AND PETERSON, N.V., 1979, GEOLOGY AND MINERAL RESOURCES OF JOSEPHINE COUNTY, OREGON; ODGMI BULL. 100, 45P}{Deposit:: BROOKS, H.C. AND RAMP, L., 1968, GOLD AND SILVER IN OREGON; ODGMI BULL. 61, P.208}{Deposit:: OREGON METAL MINES HANDBOOK, 1942, ODGMI BULL. 14-C, VOL. 2, SEC. 1, P.28}{Production:: USBM}
Reporter	Johnson, Maureen G., Smith, Roscoe M. And Ferns, Mark L. (Brooks, Howard C.), Gray, Jerry J.