Coarse Gold Creek (central)

Mine, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale BN
Quadrangle map, 1:63,360-scale C-6
Latitude 65.564
Longitude -164.822
Nearby scientific data Find additional scientific data near this location
Location and accuracy Coarse Gold Creek is a west tributary to Kougarok River. Its mouth is 2 miles west of the Nome-Taylor road measured from just north of the roads crossing of North Fork (Kougarok River). Placer mining along the central part of this creek took place over a length of 4,000 feet starting 2.3 miles upstream of the mouth. This mining was above and below the mouth of Nugget Creek, a small south tributary to Coarse Gold Creek. This locality was not included by Cobb (1972; MF 417). Cobb (1975; OFR 75-429) references may be for locations along the creek or at the mouth (BN024).

Geologic setting

Geologic description

Little is reported concerning placer gold on central Coarse Gold Creek. Gold was reported and some mining took place somewhere on the creek by 1908 (Collier and others, 1908; Smith, 1909). Sainsbury and others (1969) show 4,000 feet of placer mine workings both above and below the mouth of Nugget Creek, a small south tributary to Coarse Gold Creek. Bedrock exposures in a small area along the placer-mined part of the creek are shown by Sainsbury and others (1969) to be both metasedimentary rocks (part of a Lower Paleozoic metasedimentary assemblage of Till and others, 1986) and metagabbroic rocks. The metagabbroic rocks are part of a mafic metavolcanic assemblage that Till and others (1986) consider to be Ordovician in age.
Geologic map unit (-164.824682544892, 65.5632704432551)
Mineral deposit model Placer Au-PGE (Cox and Singer, 1986; model 39a).
Mineral deposit model number 39a
Age of mineralization Quaternary.

Production and reserves

Workings or exploration Surface open-cut placer workings are present along 4,000 feet of the main stream channel.
Indication of production Yes; small

References

MRDS Number A012701
Reporters Travis L. Hudson (Applied Geology)
Last report date 3/15/1999