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Cape Kubugakli Placer

Past Producer in Alaska, United States with commodities Gold, Molybdenum, Lead, Antimony
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Geologic information

Identification information

Deposit ID 10001684
MRDS ID A012461
Record type Site
Current site name Cape Kubugakli Placer
Related records 10234027

Geographic coordinates

Geographic coordinates: -155.0825, 57.87937 (WGS84)
Relative position This site is located on a small easterly drainage at the east end of Cape Kubugakli (Berg and Cobb, 1967, figure 4, locality 16; Cobb, 1972, MF 459, locality 3; Cobb, 1973, Bulletin 1374, figure 4, locality 15; MacKevette and Holloway, 1977, locality 3; Church and others, 1989, MF 1539 I, locality 10). Location is accurate to within 1/2 mile.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Molybdenum Secondary
Lead Secondary
Antimony Secondary

Materials information

Materials Type of material
Galena Ore
Gold Ore
Molybdenite Ore
Stibnite Ore
Quartz Gangue

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

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Holocene

Nearby scientific data

(1) -155.0825, 57.87937
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Comments on the geologic information

  • Geologic Description = Placer gold occurs along a small drainage in a sinuous strip 8-10 feet wide (Smith, 1925). Bedrock is about 2 feet below a covering of gravel and large boulders. The source of the gold is apparently from gold-sulfide bearing quartz stringers in the area (see Cape Kubugaki Lode, ARDF No. KR002). The best pay was found just downstream from outcropping quartz stringers. Total production between 1915 and 1925 is estimated at 160 ounces.
  • Age = 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 Alaska Peninsula

Comments on the production information

  • Production Notes = Total estimated production was 160 ounces of gold from 1915 to 1925. Additional later production has not been reported.

Comments on the workings information

  • Workings / Exploration = From 1915 to 1925 a small amount of gold was recovered each year. The total amount produced was approximately 160 ounces (Smith, 1925). No production has been reported since that time.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012461
USGS Alaska Resource Data File ARDF KR003

Bibliographic references

  • Deposit

    Smith, W.R., 1925, The Cold Bay-Katmai District, in Brooks and others, in Mineral resources of Alaska, 1923: U.S. Geological Survey Bulletin 773, p. 183-207.

  • Deposit

    Berg, H.C., and Cobb, E.H., 1967, Metalliferous Lode Deposits of Alaska. U.S. Geological Survey Bulletin 1246, 254 p.

  • Deposit

    Cobb, E.H., 1973, Placer deposits of Alaska: U.S. Geological Survey Bulletin 1374, 213 p.

  • Deposit

    Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Afognak, Karluk, Kodiak, and Trinity Islands quadrangles, Alaska: U.S. Geological Survey Open-File Report 79-860, 49 p.

  • Deposit

    MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous mineral deposits in the western part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-F, 38 p., 1 sheet, scale 1:1,000,000.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Karluk quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-459, 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Smith, 1925

General comments

Subject category Comment text
Deposit Model Name = Gold placer (Cox and Singer, 1986; model 39a).
Deposit Other Comments = Site is located in Katmai National Park.

Reporter information

Type Date Name Affiliation Comment
Reporter 18-AUG-1998 S.H. Pilcher U.S. Geological Survey