Crooked Creek

Site Name

Primary: Crooked Creek

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Commodity

Primary: Gold

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Location

State: Alaska
District: Aniak

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Land Status

Not available

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Holdings

Not available

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Workings

Not available

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Ownership

Not available

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Production

Not available

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Deposit

Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:

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Physiography

Not available

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Mineral Deposit Model

Model Name: Placer Au-PGE

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Orebody

Not available

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Structure

Not available

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Alterations

Not available

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Rocks

Name: Gravel
Role: Host
Age Type: Host Rock
Age Young: Holocene

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Analytical Data

Not available

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Materials

Ore: Gold

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Comments

Comment (Workings): Workings / Exploration = One prospect hole dug near mouth of Crevice Creek. Nature of other workings not defined.

Comment (Production): Production Notes = Production recorded for gulches that feed the part of Crooked Creek that lies within Iditarod quad.

Comment (Reference): Primary Reference = Miller and others, 1989, p. 75

Comment (Geology): Geologic Description = Gold-bearing bench gravel E of Crooked Creek is 20 ft (6 m) above present stream, 1 mi (1.6 km) wide, and 10-100 ft (3-30.5 m) deep to bedrock. Gold is reconcentrated along tributary streams flowing through benches. Only a few short, narrow paystreaks, alternating with low-grade or barren gravel, in streams. Only 1 mi (1.6 km) of placer deposit is in Sleetmute quad; the rest is in the Iditarod quadrangle.

Comment (Deposit): Other Comments = Most of Crooked Creek placer and its tributary streams are in Iditarod quadrangle. Stream gradient is less than 50 ft/mi (9.5 m/km).

Comment (Deposit): Model Name = Placer; modern stream, bench

Comment (Exploration): Status = Inactive

Comment (Geology): Age = Tertiary/Quaternary

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References

Reference (Deposit): Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Dillingham, Sleetmute, and Taylor Mountains quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-606, 92 p.

Reference (Deposit): Maddren, A.G., 1915, Gold placers of the lower Kuskokwim, with a note on copper in the Russian Mountains: U.S. Geological Survey Bulletin 622-H, p. 292-360.

Reference (Deposit): Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Dillingham, Sleetmute, and Taylor Mountain quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-606, 92 p.

Reference (Deposit): Yeend, W.E., 1986, Descriptive model of Placer Au-PGE, in Cox, D.P., and Singer, D.A., eds. Mineral Deposit Models: U.S. Geological Survey Bulletin 1693, p. 261-4.

Reference (Deposit): Maddren, A.G., 1915, Gold placers of the lower Kuskokwim with a note on copper in the Russian Mountains: U.S. Geological Survey Bulletin 622-H, p. 292-360.

Reference (Deposit): Miller, M.L., Belkin, H.E., Blodgett, R.B., Bundtzen, T.K., Cady, J.W., Goldfarb, R.J., Gray, J.E., McGimsey, R.G., and Simpson, S.L., 1989, Pre-field study and mineral resource assessment of the Sleetmute quadrangle, southwestern Alaska: U.S. Geological Survey Open-File Report 89-363, 115 p., 3 plates, scale 1:250,000.

Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Sleetmute quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-368, scale 1:250,000.

Reference (Deposit): Cady, W.M., Wallace, R.E., Hoare, J.M., and Webber, E.J., 1955, The central Kuskokwim region, Alaska: U.S. Geological Survey Professional Paper 268, 132 p.

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