Moonlight Prospect, Fairbanks District, Fairbanks North Star Borough, Alaska, USA

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Location: Cobb (1972, MF-413), loc. 33; SW1/4NW1/4 sec. 1, T. 2 N., R. 1 E., of the Fairbanks Meridian. The prospect is on the hillside southeast of Twin Creek, across the creek from the Rainbow Mine and a short distance above the mouth of Skoogy Gulch. The Moonlight shaft is at an approximate elevation of 1,900 feet, about 7 miles by road northeast of Fox along the Steese Highway. Accuracy is within 1,000 feet.
Geology: The Moonlight prospect is a vein of crushed quartz and schist, less than one foot wide, in a fracture zone in quartzite schist and granite. The vein is said to carry considerable gold and large amounts of unspecified sulfides (Smith, 1913; B 525, p. 201). The vein was traced by prospect pits for 2500 feet. It strikes N 70 W and dips steeply NE (Chapin, 1914, p. 349). Grab samples of ore on dump contained 0.16 ounces per ton in gold (Hill, 1933, p. 114). There were about 170 feet of underground workings by 1914 (Chapin, 1914).
Workings: There were about 170 feet of underground workings by 1914 (Chapin, 1914, p. 349). The vein was traced by prospect pits for 2500 feet (Chapin, 1914, p. 349). By 1931, the three tunnels and connecting raises were in bad condition (Hill, 1933).
Production: No record of production.

Commodities (Major) - Au
Development Status: Undetermined
Deposit Model: Gold-quartz vein.

References

Chapin, Theodore, 1914, Lode mining near Fairbanks, Alaska: U.S. Geological Survey Bulletin 592-J, p. 321-355. Chapman, R.M., and Foster, R.L., 1969, Lode mines and prospects in the Fairbanks district, Alaska: U.S. Geological Survey Professional Paper 625-D, 25 p., 1 plate. Cobb, E.H., 1972, Metallic mineral resources map of the Livengood quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-413, 2 sheets, scale 1:250,000. Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Livengood quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-819, 241 p. Eakin, H.M., 1915, Mining in the Fairbanks district: U.S. Geological Survey Bulletin 622-G, p. 229-238. Hill, J.M., 1933, Lode deposits of the Fairbanks district, Alaska: U.S. Geological Survey Bulletin 849-B, p. 29-163. Smith, P.S., 1913, Lode mining near Fairbanks, in Prindle, L.M., A geologic reconnaissance of the Fairbanks quadrangle, Alaska: U.S. Geological Survey Bulletin 525, p. 153-216. Smith, P.S., 1913, Lode mining near Fairbanks: U.S. Geological Survey Bulletin 542-F, p. 137-202.

Mineral List

Gold

1 entry listed. 1 valid mineral.