Little Moose Creek Mine, Bonnifield District, Denali Borough, Alaska, USA

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Location: The Little Moose Creek mine is located in secs. 20 and 21, T. 10 S., R. 7 W., Fairbanks Meridian. Over the years, placer operations have taken place at various locations along Little Moose Creek, and the coordinates are approximately the mid-point of the creek. The mine is locality 63 of Cobb (1972 [MF 410]).
Geology: The Little Moose Creek basin is underlain mainly by quartz-orthoclase-sericite schist of the California Creek Member of the Totatlanika Schist (Wahrhaftig, 1970 [GQ-810]). Gold is found in stream gravel that is approximately 2 to 4 feet thick along the lower mile of the creek above the confluence with Moose Creek (Maddren, 1918). Scarce scheelite was found in placer concentrates (Joesting, 1943 [ATDM Pamph. 2, p. 20[). Glover (1950) reported that the gold is 860 fine.
Workings: There was small-scale placer mining before 1918; mining probably has continued sporadically since.
Age: Quaternary placer.

Commodities (Major) - Au
Development Status: Yes; small
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a)

References

Cobb, E.H., 1972, Metallic mineral resources map of the Fairbanks quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-410, 1 sheet, scale 1:250,000. Cobb, E.H., 1973, Placer deposits of Alaska: U.S. Geological Survey Bulletin 1374, 213 p. Cobb, E.H., 1975, Mineral resources of Alaska, in Yount, M.E., ed., U.S. Geological Survey Alaska Program, 1975: U.S. Geological Survey Circular 722, p. 37. Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Fairbanks quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-662, 174 p. Glover, A.E., 1950, Placer gold fineness: Alaska Territorial Department of Mines Miscellaneous Report 195-1, 38 p. Joesting, H.R., 1943, Strategic mineral occurrences in interior Alaska, supplement to pamphlet no. 1: Alaska Territorial Department of Mines Pamphlet 2, 26 p. Maddren, A.G., 1918, Gold placers near the Nenana coal field: U.S. Geological Survey Bulletin 662-G, p. 363-402. Smith, P.S., 1939, Mineral industry of Alaska in 1937: U.S. Geological Survey Bulletin 910-A, p. 1-113. Thorne, R.L., Muir, N.M., Erickson, A.W., Thomas, B. I., Hedie, H. E., and Wright, W. S., 1948, Tungsten deposits of Alaska: U.S. Bureau of Mines Report of Investigation 4174, 51 p. Wahrhaftig, Clyde, 1970, Geologic map of the Fairbanks A-4 quadrangle, Alaska: U.S. Geological Survey Geologic Quadrangle Map GQ-810, 1 sheet, scale 1:63:360.

Mineral List

Gold

Scheelite

2 entries listed. 2 valid minerals.