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Koyana Creek

Past Producer in Alaska, United States with commodities Gold, Mercury
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Mineral occurrence model information
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10308262
Record type Site
Current site name Koyana Creek

Geographic coordinates

Geographic coordinates: -163.67025, 64.57032 (WGS84)
Relative position Koyana Creek is a small drainage that flows south to Norton Sound, 2.6 miles east of Bluff. This is locality 112 of Cobb (1972, MF 445; 1978, OF 78-181).

Site location context

Political divisions (FIPS codes)

Nome(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Solomon C-4(quadrangle 1:63,360 scale)

Solomon NE(quadrangle 1:100,000 scale)

Solomon C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Nome(hydrologic unit)

Norton Sound(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

White Mountain Native Corporation(ANCSA Village)

ANCSA Village NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Mercury Secondary

Materials information

Materials Type of material
Cinnabar Ore
Gold Ore

Mineral occurrence model information

Model code 119
USGS model code 39a
Deposit model name Placer Au-PGE
Mark3 model number 54

Nearby scientific data

(1) -163.67025, 64.57032
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Small-scale placer mining took place on Koyana Creek in the early part of the 1900's (Collier, 1908) and between 1928 and 1930 (Cobb, 1978, OF 78-181). The placer deposits were shallow and apparently low grade. Mulligan (1971) estimates that less than 100 ounces were produced. Cinnabar was recovered in the placer concentrates (Cathcart, 1922). The Koyana Creek area is better known for the lode gold prospects here (ARDF SO136) than for placer mining. Bedrock in the area is a lower Paleozoic metasedimentary sequence that includes marble and schist (Till and others, 1986).
  • Age = Quaternary; the placer deposits here are at low enough elevation (50 to 100 feet) to have been influenced by Quaternary sea level fluctuations.

Economic information about the deposit and operations

Development status Past Producer

Comments on exploration

  • Status = Inactive ?

Mining district

District name Council

Comments on the workings information

  • Workings / Exploration = Small open-cut placer pits are present. Most reported exploration activity in the area was focused on lode gold deposits (ARDF SO136).

Reference information

Bibliographic references

  • Deposit

    Collier, A. J., Hess, F.L., Smith, P.S., and Brooks, A.H., 1908, The gold placers of parts of Seward Peninsula, Alaska, including the Nome, Council, Kougarok, Port Clarence, and Goodhope precincts: U.S. Geological Survey Bulletin 328, 343 p.

  • Deposit

    Cathcart, S.H., 1922, Metalliferous lodes in southern Seward Peninsula: U.S. Geological Survey Bulletin 722, p. 163-261.

  • Deposit

    Mulligan, J.J., 1971, Sampling gold lode deposits, Bluff, Seward Peninsula, Alaska, with a section on petrography by Walter L. Gnagy: U.S. Bureau of Mines Report of Investigations 7555, 40 p.

  • Deposit

    Cobb, E.H., 1972, Metallic resources map of the Solomon quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-445, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Solomon quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-181, 185 p.

  • Deposit

    Till, A.B., Dumoulin, J.A., Gamble, B. ., Kaufman, D.S., and Carroll, P.I., 1986, Preliminary geologic map and fossil data, Soloman, Bendeleben, and southern Kotzebue quadrangles, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 86-276, 10 p., 3 plates, scale 1:250,000.

Comments on the references

  • Primary Reference = Cobb, 1978 (OF 78-181)

General comments

Subject category Comment text
Deposit Model Name = Placer Au-PGE (Cox and Singer, 1986; model 39a).

Reporter information

Type Date Name Affiliation Comment
Reporter 19-AUG-99 Travis L. Hudson Applied Geology

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.