Mine detail: Granite Gold Mining Co.

Previously called 'El Primero Mining and Milling Co.'

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Location

Lat / long:

60.9715, -148.2137

Resource(M)

Primary:	Gold
Tertiary:	Zinc, Antimony, Lead, Copper
Ore:	Chalcopyrite, Galena, Gold, Sphalerite, Stibnite
Gangue:	Calcite, Pyrite, Quartz
Discovery year:	1912

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1914
Last production ended:	1917

Geology

Host rock:	Valdez Group
Host type:	Siltstone
Structure:	Adjacent To Port Wells Fault
Alteration processes:	Granite Shows Signs Of Unspecified Hydrothermal Alteration Near Fissure

References

MRDS	A010398
DEP	10100935
Reference	{Deposit:: USGS BULLETIN 622, P. 135-138}{Deposit:: MINES HANDBOOK, V.14, 1920: NEW YORK, W.H. WEED, P. 147}{Deposit:: USGS MISCELLANEOUS FIELD STUDIES 880-A, LOCATION 120}{Deposit:: USGS OPEN FILE 80-621, P. 95}{Production:: MINES HANDBOOK, V.14, 1920: NEW YORK, W.H. WEED, P.147}
Reporter	Hirschmann, M. M. (Elliott, R. L.), Mosier, Dan