The Cripple Creek (upper) 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
Cripple Creek (upper) MRDS details
Site Name
Primary: Cripple Creek (upper)
Commodity
Primary: Gold
Location
State: Alaska
District: Aniak
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
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: Magnetite
Ore: Gold
Comments
Comment (Geology): Geologic Description = Cripple Creek was prospected and staked soon after placer gold was discovered on Marvel Creek (BH010) in 1911. The headwaters of Cripple Creek have coarse outwash or morainal deposits, and a glacier occupied the headwater valley of Loco Creek, a west tributary. Most of the Cripple Creek drainage is filled with alluvial outwash deposits. These have been incised by the present drainage that cuts 10 to 30 feet into bedrock along the lower reaches of the creek. Placer mining along Cripple Creek above the mouth of Loco Creek, has taken place over at least a mile of the creek and seems restricted to the active flood plain (Cobb, 1972 [MF 455]). The flood plain gravels are about 6 feet thick and some of the pay is reported to have run about 0.003 ounce of gold per cubic yard (Hoare and Cobb, 1977, p. 9). The gold is fine and flaky and accompanied by much magnetite. Bedrock in the headwaters of Cripple Creek and Loco Creek include a Lower Tertiary granitic stock and a rhyolite intrusive (?) in mid-Cretaceous sedimentary rocks of the Kuskokwim Group (Box and others, 1993).
Comment (Deposit): Model Name = Placer Au-PGE (Cox and Singer, 1986; model 39a).
Comment (Workings): Workings / Exploration = Cobb (1972 [MF 455]) shows that over a mile of the active flood plain has been placer mined in this area.
Comment (Reference): Primary Reference = Hoare and Cobb, 1977
Comment (Geology): Age = Quaternary.
References
Reference (Deposit): Maddren, A.G., 1915, Gold placers of the lower Kuskokwim with a note on copper in the Russian Mountains: U.S. Geological Survey Bulletin 622-H, p. 292-360.
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Bethel quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-455, 1 sheet, scale 1:250,000.
Reference (Deposit): Box, S.E, Moll-Stalcup, E.J., Frost, T.P., and Murphy, J.M., 1993, Preliminary geologic map of the Bethel and southern Russian Mission quadrangles, southwestern Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-2226-A, 20 p., scale 1:250,000.
Reference (Deposit): Hoare, J.M., and Cobb, E.H., 1977, Mineral occurrences (other than mineral fuels and construction materials) in the Bethel, Goodnews, and Russian Mission quadrangles, Alaska: U.S. Geological Survey Open-File Report 77-156, 98 p.
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