Mine detail: Howland

Previously called 'Silver Creek'

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Location

Lat / long:

42.50926, -123.71588

Resource(M)

Primary:	Silver, Gold
Tertiary:	Copper
Ore:	Chalcopyrite, Pyrite
Gangue:	Quartz

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer
Production years:	1925-1958

Geology

Host rock:	Briggs Creek Amphibolite
Host type:	Amphibolite
Associated type:	Amphibolite
Alteration processes:	Abundant Iron Oxides Near Surface

References

MRDS	M060779
DEP	10042768
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. 210}{Deposit:: OREGON METAL MINES HANDBOOK, 1942, ODGMI BULL. 14-C, VOL. 2, SEC. 1, P. 134}{Production:: USBM}
Reporter	Johnson, Maureen G., Ferns, Mark L. (Brooks, Howard C.), Gray, Jerry J.