Lewis Gulch

Past Producer in Alaska, United States with commodity Gold

Geologic information

Identification information

Deposit ID 10002624
MRDS ID A015061
Record type Site
Current site name Lewis Gulch
Related records 10113104

Geographic coordinates

Geographic coordinates: -158.22679, 62.05049 (WGS84)
Relative position USGS MF-363, Loc. 17. About 1/2 mile upstream from mouth of Lewis Gulch.; Accurate within 2,000 ft.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore

Mineral occurrence model information

Model code 119
USGS model code 39a
BC deposit profile C01. C02
Deposit model name Placer Au-PGE
Mark3 model number 54

Nearby scientific data

(1) -158.22679, 62.05049

Comments on the geologic information

  • Geologic Description = Gold is in bench gravels east of Crooked Creek. Benches are entrenched 15-30 ft. by tributary gulches, causing reconcentration from bench gravels.
  • Age = Tertiary/Quaternary

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Aniak

Comments on the production information

  • Production Notes = Mined about 1910; production is lumped with that for Donlin Creek (see Donlin Creek, #ID162)

Comments on the workings information

  • Workings / Exploration = Surface

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A015061
USGS Alaska Resource Data File ARDF ID163

Bibliographic references

  • 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.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Iditarod quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-363, 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Cady and others, 1955

General comments

Subject category Comment text
Deposit Model Name = Placer: reconcentrated bench
Deposit Other Comments = Stream gradient about 200 feet per mile.

Reporter information

Type Date Name Affiliation Comment
Reporter 25-MAY-1994 Powers, M.T. U.S. Geological Survey
Reporter 25-MAY-1994 Huber, D.F. U.S. Geological Survey
Reporter 25-MAY-1994 Miller, M.L. U.S. Geological Survey