The Unnamed (Bremner River aboveThreemile Canyon) 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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Unnamed (Bremner River aboveThreemile Canyon) MRDS details
Site Name
Primary: Unnamed (Bremner River aboveThreemile Canyon)
Commodity
Primary: Gold
Location
State: Alaska
District: Copper River
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
Not available
Comments
Comment (Geology): Age = Holocene.
Comment (Reference): Primary Reference = Moffit, 1914
Comment (Workings): Workings / Exploration = Unknown.
Comment (Deposit): Model Name = Placer Au (Cox and SInger, 1986; model 39a)
Comment (Geology): Geologic Description = This prospect consists of small amounts of placer gold in alluvium derived from Upper Cretaceous Valdez Group metamorphic rocks (Winkler and Plafker (1981). According to Moffit (1914), high benches of glacial outwash behind a ridge of shale formerly dammed the river and formed a lake, producing a site of gold deposition. The gold is too fine and too sparse to have interested prospectors.
Comment (Deposit): Other Comments = Located on lands within Wrangell-St. Elias National Park.
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Moffit, F.H., 1914, Geology of the Hanagita-Bremner region, Alaska: U.S. Geological Survey Bulletin 576, 56 p.
Reference (Deposit): Winkler, G.R., and Plafker, George, 1981, Geologic map and cross sections of the Cordova and Middleton Island quadrangles, southern Alaska: U.S. Geological Survey Open-File Report 81-1164, 24 p., 1 sheet, scale 1:250,000.
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Cordova quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-392, 1 sheet, scale 1:250,000.
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