The Hill 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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Hill Creek MRDS details
Site Name
Primary: Hill Creek
Commodity
Primary: Gold
Location
State: Alaska
District: Fairbanks
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
Alteration Type: L
Alteration Text: The bedrock of biotite granite is deeply weathered and stained with iron (Prindle, 1908, p. 40).
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Gold
Comments
Comment (Deposit): Model Name = Placer Au (Cox and Singer, 1986; model 39a)
Comment (Exploration): Status = Inactive
Comment (Workings): Workings / Exploration = Open-cut mining took place in the valley floor sometime before 1908 (Prindle, 1908, p. 40). Evidence for more recent mining is the placer tailings and a mine marked on the Fairbanks (D-1) NW topographic map on Hill Creek ,but no other information is available.
Comment (Reference): Primary Reference = Cobb, 1976 (OFR 76-662)
Comment (Production): Production Notes = There probably was some minor production before 1908, and relatively modern tailings along the creek indicate some production in recent years.
Comment (Geology): Geologic Description = This placer deposit is developed on weathered, coarse-grained, porphyritic biotite granite (Brooks, 1925, p. 19; Prindle, 1908, p. 40). Gold is derived from a mineralized zone near a contact between Cretaceous granite and schist (Brooks, 1911 [B 480, p. 69]). The paystreak was said to be narrrow (Prindle, 1908, p. 40). The alluvium consists of granitic sand about 8 feet deep (Prindle, 1908, p. 40). The gold varies from from 750 to 934 fine (Glover, 1950).
Comment (Geology): Age = Quaternary placer.
References
Reference (Deposit): Brooks, A.H., 1911, The mining industry in 1910, in Brooks, A.K., and others, Mineral resources of Alaska, report on progress of investigations in 1910: U.S. Geological Survey Bulletin 480-B p. 21-43.
Reference (Deposit): Glover, A.E., 1950, Placer gold fineness: Alaska Territorial Department of Mines Miscellaneous Report 195-1, 38 p.
Reference (Deposit): Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Fairbanks quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-662, 174 p.
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Fairbanks quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-410, 1 sheet, scale 1:250,000.
Reference (Deposit): Prindle, L.M., 1908, The Fairbanks and Rampart quadrangles, Yukon-Tanana region, Alaska, with a section on the Rampart placers, by F.L. Hess, and a paper on the water supply of the Fairbanks region, by C.C. Covert: U.S. Geological Survey Bulletin 337, 102 p.
Reference (Deposit): Brooks, A.H., 1925, Alaska's mineral resources and production, 1923: U.S. Geological Survey Bulletin 773, p. 3-52.
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