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GRANITE CREEK MINE              

Granite Creek Mine, Iditarod District, Yukon-Koyukuk Borough, Alaska, USA

 

Geology: Placer gold has been mined on Granite Creek since 1910 (Mertie, 1936). The deposit developed where the creek dissects mineralized volcanic and plutonic rocks north of Otter Creek (Bundtzen and others, 1992). The gold fineness averages 854 (Mertie, 1936). Heavy minerals identified in concentrates include gold, arsenopyrite, cinnabar, scheelite, chromite, and ilmenite (Mertie, 1936; Bundtzen, Cox and Veach, 1987). The placer gold was very fine grained and shotty; about 1.5 feet of bedrock was dug up to recover the gold (Cobb, 1976 [OFR 76-576]). Granite Creek has produced at least 4,750 ounces of gold and 636 ounces of silver since the early 20th century (Bundtzen and others, 1992; Miller, Bundtzen, and Gray, 2005). These production estimates derived from incomplete mint records are probably conservative.

Workings: Mining began on Granite Creek in 1908 using scrapers working in open cuts; the most extensive mining took place between 1924 and 1940 (Cobb, 1976 [OFR 76-576]).

Age: Unknown; probably Quaternary.

Production: Granite Creek has produced at least 4,750 ounces of gold and 636 ounces of silver since the early 20th century (Bundtzen and others, 1992; Miller, Bundtzen, and Gray, 2005). These production estimates derived from incomplete mint records are probably conservative.

Grainite Creek Mine is located South of Mcgrath, Ak.  It has been a family run operation since the 80's. IT has been operated with 3 people operating the wash plant and 1 Logistics/Cook!  The Home has hot and cold running water, an indoor bathroom and could house 10 workers if desired.  The home is very comfortable and could be lived in year around. Electric is provided by Solar and generator. 
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