Sapphire Gulch

Mine, Probably inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale SO
Quadrangle map, 1:63,360-scale C-5
Latitude 64.676
Longitude -164.362
Nearby scientific data Find additional scientific data near this location
Location and accuracy Sapphire Gulch is a very small north tributary to Minnesota Creek located 1 mile upstream of the confluence of Minnesota and Penny Creek (SO018) and about 2 miles north of Quigleys Camp on the Solomon River. The lower part of this drainage is at about 275 feet elevation. This is locality 93 of Cobb (1972, MF 445; 1978, OF 78-181).

Geologic setting

Geologic description

Smith (1910) reports that most of the gravels in this drainage were mined by 1907. Bedrock is part of a lower Paleozoic metasedimentary assemblage (Sainsbury and others, 1972, OFR 511; Till and others, 1986).
Geologic map unit (-164.364606115039, 64.6752561079445)
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 The early mining was probably mostly hand operations.
Indication of production Yes; small

References