Unnamed (east tributary of Little Eldorado Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Au
Other commodities Ag; Hg
Ore minerals iron oxide
Gangue minerals sericite

Geographic location

Quadrangle map, 1:250,000-scale ID
Quadrangle map, 1:63,360-scale A-4
Latitude 62.23368
Longitude -157.94007
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is on a south facing bluff overlooking an unnamed east fork of Little Eldorado Creek. It is about 3.5 miles west of VABM 1918/Widgeon and about 0.5 mile north of the center of section 26, T. 25 N., R. 47 W., of the Seward Meridian. The location is accurate.

Geologic setting

Geologic description

This occurrence consists of a zone of iron-staining and sericite alteration in a small granite intrusion that intrudes flysch of the Upper Cretaceous, Kuskokwim Group (Miller and Bundtzen, 1994; Miller, Bundtzen, and Gray, 2005). One grab sample of weak mineralization contained 50 parts per billion (ppb) gold, 1,800 ppb mercury, and 100 ppb silver (McGimsey and others, 1988).
Geologic map unit (-157.942477323633, 62.232991534194)
Alteration of deposit Sericitic alteration and iron staining.

Production and reserves

Workings or exploration Samples were collected by the U.S. Geological Survey and Alaska Division of Geological and Geophysical Surveys in the 1980s (McGimsey and others, 1988).
Indication of production None