West Creek

Mine, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals arsenopyrite; chalcopyrite; gold; pyrite
Gangue minerals garnet; magnetite

Geographic location

Quadrangle map, 1:250,000-scale SO
Quadrangle map, 1:63,360-scale C-5
Latitude 64.677
Longitude -164.456
Nearby scientific data Find additional scientific data near this location
Location and accuracy West Creek is a west tributary to Shovel Creek (SO017). Placer mining took place over about the lower 1.5 miles of the creek, between elevations of 175 to 300 feet. This is locality 87 of Cobb (1972, MF 445; 1978, OF 78-181).

Geologic setting

Geologic description

Placer mining took place over about the lower 1.5 miles of the West Creek, between elevations of 175 to 300 feet. Gold-bearing gravels were 3 to 4 feet thick on bedrock; gold coarseness increased upstream. Crevices and cracks in marble bedrock locally controled gold deposition and gold was concentrated on a false clay bedrock in places. A 0.2 ounce gold nugget with quartz was found embedded in schist and heavy mineral concentrate contained arsenopyrite, chalcopyrite, garnet, magnetite, and pyrite (Brooks and others, 1901). Bedrock is part of a lower Paleozoic metasedimentary assemblage (Sainsbury and others, 1972, OFR 511; Till and others, 1986).
Geologic map unit (-164.458614553365, 64.6762550687442)
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 Placer mining was mostly by small-scale methods but a dryland-dredge on tracks operated in 1908-11. Some open-cut (dozer?) mining took place in the 1930s (Cobb, 1978, OF 78-181).
Indication of production Yes; small

References