Unnamed (on Costello Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale HE
Quadrangle map, 1:63,360-scale A-6
Latitude 63.24
Longitude -149.5
Nearby scientific data Find additional scientific data near this location
Location and accuracy The map site of this placer occurrence is at an elevation of about 2,400 feet on Costello Creek. It is in sec. 29, T. 19 S., R. 10 W., of the Fairbanks Meridian. The site corresponds to loc. E-15 of Balen (1990: OFR 34-90).

Geologic setting

Geologic description

Gold has been reported in an alluvial placer along Costello Creek, from its confluence with the Bull River upstream for about 2 miles. Costello Creek drains a attachment basin containing porphyry, skarn, polymetallic, and epithermal veins, all with significant gold contents.
Geologic map unit (-149.502287339256, 63.2395285203104)
Mineral deposit model Placer Au (Cox and Singer, 1986; model 39a)
Mineral deposit model number 39a
Age of mineralization Quaternary.

Production and reserves

Workings or exploration Minor surface workings show traces of gold in placer samples (Balen, 1990: OFR 34-90).
Indication of production None

References