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Steil

Prospect, Inactive

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Commodities and mineralogy

Main commodities Sb
Ore minerals stibnite

Geographic location

Quadrangle map, 1:250,000-scale LG
Quadrangle map, 1:63,360-scale A-1
Latitude 65.061
Longitude -147.467
Nearby scientific data Find additional scientific data near this location
Location and accuracy Cobb (1972, MF-413), loc. 37; SW1/4NW1/4 sec. 25, T. 3 N., R. 1 E., of the Fairbanks Meridian. This prospect is at the head of Cleary Creek, at an elevation of 1,475 feet.

Geologic setting

Geologic description

Some stibnite and less pyrite occur in narrow quartz veins that branch through the metabasaltic country rock (Smith, 1913; B 525). By 1912, the adit was 400 feet long and had working drifts driven along the mineralized shear zones. Smith (1913, B 525) indicated the tunnel was caved in 1912 and the property had not reached the production stage, but that a road had been built from the tunnel to the main road to the north.
The Steil prospect was examined as a possible source of antimony in 1942 but no additional exploration was conducted due to lack of indication of significant tonnage (Killeen and Mertie, 1951).
Geologic map unit (-147.469447333642, 65.0605763851905)
Mineral deposit model Stibnite in quartz veins.

Production and reserves

Workings or exploration By 1912, an adit was 400 feet long and had working drifts along the mineralized shear zones. But, Smith (1913, B 525) indicated the tunnel was caved in 1912 and the property had not reached the production stage, but that a road had been built from the tunnel to the main road to the north.
Indication of production None

Additional comments

The prospect was discovered prior to 1912 by Peter Steil and was one of the first adits driven in the Fairbanks district (Times Publishing Company, 1912).

References

MRDS Number A015427

References

Brooks, A.H., 1916, Antimony deposits of Alaska: U.S. Geological Survey Bulletin 649, 67 p.
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.
Freeman, C.J., 1992, 1991 Golden Summit project final report, volume 2: Historical summary of lode mines and prospects in the Golden Summit project area, Alaska: Avalon Development Corp., 159 p. (Report held by Freegold Recovery Inc. USA, Vancouver, British Columbia.)
Killeen, P.L., and Mertie, J.B., 1951, Antimony ore in the Fairbanks District, Alaska: U.S. Geological Survey Open-File Report 51-46, 43 p.
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.
Reporters C.J. Freeman, J.R. Guidetti Schaefer (Avalon Development Corporation)
Last report date 5/4/1999