Beaver Creek

Mine, Inactive

Commodities and mineralogy

Main commodities Au
Other commodities Sn
Ore minerals cassiterite; gold

Geographic location

Quadrangle map, 1:250,000-scale BD
Quadrangle map, 1:63,360-scale D-5
Latitude 64.764
Longitude -146.394
Nearby scientific data Find additional scientific data near this location
Location and accuracy Beaver Creek drains west into the South Fork of the Chena River. The creek is roughly 12 miles long and has several tributaries, including Pine Creek (BD032). The Alaska Division of Mining Kardex file system reports placer mining on Beaver Creek at the base of Emory Creek. The approximate center of mining activity on Beaver Creek is in SE1/4SW1/4 section 5, T. 2 S., R. 7 E., of the Fairbanks Meridian. There are references to additional placer mining along Beaver Creek, but it is unclear where. It is locality 8 of Cobb (1972; MF-388), who summarized relevant references under the name 'Beaver Creek'.

Geologic setting

Geologic description

Weber and others (1978) described the bedrock in the drainage as primarily greenschist facies rocks with some marble, quartzite, and phyllite. Locally, there is an extensive cover of windblown silt and sand that ranges from 0.1 to 50 meters in thickness. In addition, much of the ground in the swampy lowlands of the Chena River and its tributaries is permanently frozen (Foster and others, 1979). Scarce cassiterite was reported in the placer concentrates (Joesting, 1942). Glover (1950) reported a range in gold fineness of 721 to 758 for Beaver Creek.
Ellsworth and Davenport (1913) report that gold was first mined in significant amounts in the winter of 1911-12. Prospecting also occurred on nearby Pine Creek (BD032). The Alaska Division of Mining Kardex file system records active claims on Beaver Creek as recent as 1984. Ellsworth and Davenport (1913) reported that gold production was measured in dollars per foot. Total amounts of gold produced from Beaver Creek were not reported.
Geologic map unit (-146.396408093749, 64.7635936430446)
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 Placer gold was first mined on Beaver Creek in the winter of 1911-12. Prospecting also occurred on nearby Pine Creek (BD032).
Indication of production Yes; small
Production notes Ellsworth and Davenport (1913) reported that gold production was measured in dollars per foot. Total amounts of gold produced from Beaver Creek were not reported.

References

MRDS Number A012480
Reporters Cameron S. Rombach (ADDGS)
Last report date 4/26/1999