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  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Eightmile Creek

Prospect in Alaska, United States with commodity Gold
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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. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10002492
MRDS ID A013431
Record type Site
Current site name Eightmile Creek
Related records 10136779

Geographic coordinates

Geographic coordinates: -157.59286, 61.78939 (WGS84)
Relative position Since no part of Eightmile Creek was specified in the literature, the location given is approximately 2. 5 miles (4 km) up the creek from its mouth on the Kuskokwim River. This location is in the SE 1/4 of the Sleetmute D5 quadrangle.

Site location context

Political divisions (FIPS codes)

Bethel(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Sleetmute D-5(quadrangle 1:63,360 scale)

Sleetmute NW(quadrangle 1:100,000 scale)

Sleetmute C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Aniak(hydrologic unit)

Lower Kuskokwim River(hydrologic accounting unit)

Southwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Kuskokwim 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

Materials information

Materials Type of material
Gold Ore

Mineral occurrence model information

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

Host and associated rocks

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

Nearby scientific data

(1) -157.59286, 61.78939
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Bedrock in the area is Kuskokwim Group sedimentary rock; at least one rhyolite dike or sill cuts a ridge drained by the easternmost fork of this creek.
  • Age = Tertiary/Quaternary

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Aniak

Comments on the workings information

  • Workings / Exploration = Assumed to be surface.

Reference information

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 Sleetmute quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-368, scale 1:250,000.

  • 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.

  • 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.

  • 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.

  • 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.

Comments on the references

  • Primary Reference = Cady and others, 1955, p. 120

General comments

Subject category Comment text
Deposit Model Name = Placer; modern stream
Deposit Other Comments = Stream gradient is 200 ft/mi (37.9 m/km) upstream to 50 ft/mi (9.5 m/km) downstream. Very little information available on deposit.

Reporter information

Type Date Name Affiliation Comment
Reporter 02-JUN-1994 Huber, D.F. U.S. Geological Survey
Reporter 02-JUN-1994 Niles, L.P. U.S. Geological Survey
Reporter 02-JUN-1994 Miller, M.L. U.S. Geological Survey

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.