Eightmile Creek

The Eightmile Creek is a gold mine located in Alaska.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

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Site Name

Primary: Eightmile Creek

Commodity

Primary: Gold
Secondary: Mercury

Location

State: Alaska
District: Koyukuk

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

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

Physiography

Not available

Mineral Deposit Model

Model Name: Placer Au-PGE

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Cinnabar
Ore: Gold

Comments

Comment (Deposit): Model Name = Placer Au (Cox and Singer, 1986; model 39a)

Comment (Deposit): Other Comments = Alaska Kardex No. 031-4 (Kardex is a card file mining claim information system located at the State of Alaska DNR Public Information Center in Fairbanks).

Comment (Exploration): Status = Not determined

Comment (Reference): Primary Reference = Reed, 1938

Comment (Workings): Workings / Exploration = Heiner and Wolff (1968) reported that the creek had been worked in the 1950s.

Comment (Production): Production Notes = Reports of mining before 1938.

Comment (Geology): Geologic Description = Eightmile Creek is one of several tributaries to the Bettles River in which placer gold has been reported. Little descriptive information is available for this creek, but Reed (1938) reported that very good prospects had been found and that mining had occurred near the mouth in the early 1900s. Joesting (1943) reported placer cinnabar on this creek. Reed (1938) reported schist bedrock near the mouth of the creek, but Dillon and others (1996) mapped Ordovician black phyllite and marble near the mouth and Ordovician to Cambrian(?) quartz-feldspar schist farther upstream.

Comment (Geology): Age = Quaternary.

References

Reference (Deposit): DeYoung, J.H., Jr., 1978, Mineral resources map of the Chandalar quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-878-B, 2 sheets, scale 1:250,000.

Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Chandalar quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-457, 1 sheet, scale 1:250,000.

Reference (Deposit): Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Chandalar and Wiseman quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-340, 205 p.

Reference (Deposit): Heiner, L.E., and Wolff, E.N., eds., 1968, Mineral resources of northern Alaska, Final report, submitted to the NORTH Commission: Mineral Industry Research Laboratory, University of Alaska, Report 16, 306 p.

Reference (Deposit): Roehm, J.C., 1949, Report of investigations and itinerary of J.C. Roehm in the Koyukuk precinct, Alaska: Alaska Territorial Department of Mines Itinerary Report 31-1, 9 p.

Reference (Deposit): Maddren, A.G., 1913, The Koyukuk-Chandalar region, Alaska: U.S. Geological Survey Bulletin 532, 119 p.

Reference (Deposit): Maas, K.M., 1987, Maps summarizing land availability for mineral exploration and development in northern Alaska, 1986: U.S. Bureau of Mines Open-File Report 10-87, 33 sheets.

Reference (Deposit): Cobb, E.H., and Cruz, E.L., 1983, Summaries of data and lists of references to metallic and selected nonmetallic mineral deposits in the Chandalar quadrangle, Alaska: U.S. Geological Survey Open-File Report 83-278, 91 p.

Reference (Deposit): Dillon, J.T., 1982, Source of lode and placer gold deposits of the Chandalar and upper Koyukuk Districts: Alaska Division of Geological and Geophysical Surveys Open-File Report 158, 25 p., 1 sheet, scale 1:250,000.

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