|Quadrangle map, 1:250,000-scale||HE|
|Quadrangle map, 1:63,360-scale||A-6|
|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 descriptionGold 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.|
|Workings or exploration||Minor surface workings show traces of gold in placer samples (Balen, 1990: OFR 34-90).|
|Indication of production||None|
Balen, M.D., 1990, Geochemical sampling results from Bureau of Mines investigations in the Valdez Creek mining district, Alaska: U.S. Bureau of Mines Open-File Report 34-90, 218 p., 2 sheets, scale 1:63,360.
|Reporters||N. Van Wyck (Stevens Exploration Management Corporation)|
|Last report date||4/7/2000|