Tisuk River

Occurrence, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale NM
Quadrangle map, 1:63,360-scale D-3
Latitude 64.9685
Longitude -166.2031
Nearby scientific data Find additional scientific data near this location
Location and accuracy Tisuk River is a major drainage with headwaters in the southwest Kigluaik Mouintains. It was reported as auriferous over approximately 4 miles where it leaves the Kigluaik Mountains and flows across the coastal plain. The location used here is the approximate midpoint of the auriferous part of the river (Collier and others, 1908, Plate X); it is just downstream from where the Nome-Teller road crosses the river.

Geologic setting

Geologic description

Collier and others (1908, plate X) show a several-mile stretch of Tisuk River above the coastal plain as auriferous but without productive placer deposits. The auriferous part of the river has a flood plain at least one-half mile wide. Gold deposits are likely to be point bar and meander-like concentrations produced in recent times and of transient nature. Bedrock, exposed at least locally along most of Tisuk River above the coastal plain, is primarily a mafic metavolcanic assemblage (Sainsbury, Smith, and Kachadoorian, 1972).
Geologic map unit (-166.205745066777, 64.9677283098296)
Mineral deposit model Placer Au (Cox and Singer, 1986; model 39a).
Mineral deposit model number 39a
Age of mineralization Holocene.

Production and reserves

Workings or exploration Probably some exploration by pan or rocker before WWI.
Indication of production None