Unnamed (northwest tributary to Oshetna River)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale TK
Quadrangle map, 1:63,360-scale B-2
Latitude 62.3056
Longitude -147.8258
Nearby scientific data Find additional scientific data near this location
Location and accuracy This placer occurrence is at an elevation of about 4,000 feet near the head of an unnamed, southeast-flowing tributary of the Oshetna River, about a mile northeast of Granite Creek. It is near the center of the south boundary of sec. 29, T. 26 N., R. 9 E., Seward Meridian. The location is accurate to within 1/2 mile.

Geologic setting

Geologic description

Gold occurs in alluvial gravel composed primarily of Tertiary conglomerate and volcanic rocks of the Talkeetna Formation (Kurtak and others, 1992). Panned concentrates contain at least 3 colors of gold per pan and up to 4.3 parts per million gold (Clautice and others, 1990).
Geologic map unit (-147.827987058615, 62.3051302563989)
Mineral deposit model Placer Au (Cox and Singer, 1986; model 39a)
Mineral deposit model number 39a
Age of mineralization Quaternary placer.

Production and reserves

Workings or exploration Limited sampling by the Alaska Division of Geological and Geophysical Surveys (Clautice and others, 1990).
Indication of production None

References