Coarse Gold Creek

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 65.592
Longitude -164.759
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 where it crosses North Fork (Kougarok River). Sainsbury and others (1969) show placer mine workings to be present along 2,000 feet of the drainage starting 1,000 feet upstream of its mouth on Kougarok River. This is locality 33 of Cobb (1972; MF 417; 1975; OFR 75-429).

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 placer mine workings to be present along 2,000 feet of the drainage starting 1,000 feet upstream of its mouth on Kougarok River. Bedrock is not exposed in the area of these workings. The diorite in bedrock referred to in early reports (Collier and others, 1908) is probably metadiabase or metagabbro of the mafic metavolcanic assemblage of the region, considered to be Ordovician by Till and others (1986). As Sainsbury and others (1969) show some metagabbroic rocks in bedrock upstream where other placer mining took place on this creek (BN023), the early reports may be for upstream locations rather than for the area at the mouth (locality 33 of Cobb, 1972, MF 417).
Geologic map unit (-164.761685964697, 65.5912723829757)
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 Sainsbury and others (1969) show placer mine workings to be present along 2,000 feet of the drainage starting 1,000 feet upstream of the creek's mouth on Kougarok River.
Indication of production Yes; small

References

MRDS Number 10307263
Reporters Travis L. Hudson (Applied Geology)
Last report date 3/15/1999