Colorado Creek

The Colorado 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: Colorado Creek
Secondary: Kluklaklatna River
Secondary: Little Mud

Commodity

Primary: Gold

Location

State: Alaska
District: Kaiyuh

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: Gold

Comments

Comment (Workings): Workings / Exploration = Placer prospecting on Colorado Creek took place before and during 1909 (Maddren, 1910). In 1934, Mertie (1937) panned gold at this site. There is no record of any further prospecting or mining.

Comment (Exploration): Status = Inactive

Comment (Geology): Geologic Description = The area of Colorado Creek is underlain mainly by pelitic schist, phyllite, slate, sheared chert, quartzite, and some areas of recrystallized limestone (Mertie, 1937; Cass, 1959; Patton and Moll-Stalcup, 2000). Colorado Creek drains the granite or granodiorite Khotol pluton (Cass, 1959; Patton and Moll-Stalcup, 2000). That pluton has been dated by K-Ar and Ar/Ar techniques at 108-112 Ma (Flanigan, 1998). Placer prospecting on Colorado Creek took place before and during 1909 (Maddren, 1910). In 1934, Mertie (1937) panned gold at this site. There is no record of any further prospecting or mining.

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

Comment (Reference): Primary Reference = Mertie, 1937

Comment (Geology): Age = Quaternary.

References

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

Reference (Deposit): Cass, J.T., 1959, Reconnaissance geologic map of the Nulato quadrangle, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I-291, 1 sheet, scale 1:250,000.

Reference (Deposit): Maddren, A.G., 1910, The Innoko gold-placer district, Alaska, with accounts of the central Kuskokwim valley and the Ruby Creek and Gold Hill placers: U.S. Geological Survey Bulletin 410, 87 p.

Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Nulato quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-423, 1 sheet, scale 1:250,000.

Reference (Deposit): Patton, W.W., Jr., and Moll-Stalcup, E.J., 2000, Geologic map of the Nulato quadrangle, west-central Alaska: U.S. Geological Survey Geologic Investigation Map I-2677, 41 p., 1 sheet, scale 1:250,000.

Reference (Deposit): Flanigan, B., 1998, Genesis and mineralization of ore deposits in the Illinois Creek region, West Central Alaska: University of Alaska, Fairbanks, M.Sc. thesis, 125 p., 2 plates.

Reference (Deposit): Mertie, J.B., Jr., 1937, The Kaiyuh Hills, Alaska: U.S. Geological Survey Bulletin 868-D, p. 145-177.

Reference (Deposit): Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Candle, Holy Cross, Norton Bay, Nulato, and Unalakleet quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-866, 102 p.

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