Vault Creek

Mine, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale LG
Quadrangle map, 1:63,360-scale A-2
Latitude 65.039
Longitude -147.715
Nearby scientific data Find additional scientific data near this location
Location and accuracy Vault Creek has been mined for almost four miles over most of its length. Drift mines are marked on the Livengood A-2 quadrangle from the mouth of Treasure Creek, down into the Chatanika Flats where more recent mining has occurred. The location given is on a placer mine along Vault Creek, 2.5 miles SSW of Olnes; SE1/4SE1/4 sec. 34, T. 3 N., R. 1 W., of the Fairbanks Meridian.

Geologic setting

Geologic description

Vault Creek has been mined over most of its length, for about 4 miles. Drift mining took place to the east of the current position of Vault Creek, from the mouth of Treasure Creek, down to the Chatanika River. Several of these drift mines are marked on the Livengood A-2 quadrangle. Placer gold is found in gravels up to 200 feet deep. Near the mouth in the Chatanika Flats, where recent drift mining has occurred, the alluvium is over 300 feet thick. The pay streak of early mining operations was reported to be 100 or more feet wide and 3 to 6 feet thick (Prindle, 1908). Most of the mining before World War II was drift mining. Mining occurred from 1906 to 1940, and drift mining in the Chatanika flats was reported as recently as 1994 (Cobb, 1976; OFR 76-633; Swainbank and others, 1995). Gold production, including tributaries, through 1924 was worth $2,749,000 with gold valued at $20.67 per ounce (Smith, 1926, p. 13). There is no record of the amount of production from recent drift mining activities.
Geologic map unit (-147.71744652085, 65.0385702353873)
Mineral deposit model Placer gold deposit (Cox and Singer, 1986; model 39a).
Mineral deposit model number 39a

Production and reserves

Workings or exploration Placer mining, mainly from drift mines, occurred from 1906 to 1940 (Cobb, 1976; OFR 76-633). Placer gold was mined from a small underground drift near the old site of Vault, in 1989 (Bundtzen and others, 1990, p. 35). Sam Skidmore started underground production at his Vault Creek property in 1994 (Swainbank and others, 1995).
Indication of production Yes; small
Production notes Production, including tributaries, through 1924 was worth $2,749,000 (Smith, 1926, p. 13). Sam Skidmore started underground production at his Vault Creek property in 1994, however, production figures were not reported (Swainbank and others, 1995).

References

References

Smith, S.S., 1917, The mining industry in the territory of Alaska during the calendar year 1915: U.S. Bureau of Mines Bulletin 142, 66 p.
Smith, S.S., 1917, The mining industry in the territory of Alaska during the calendar year 1916: U.S. Bureau of Mines Bulletin 153, 89 p.
Reporters C.J. Freeman, J.R. Guidetti Schaefer (Avalon Development Corporation)
Last report date 5/4/1999