|Quadrangle map, 1:250,000-scale||BN|
|Quadrangle map, 1:63,360-scale||D-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This placer gold mine is reported to be on a bench near the mouth of Chicago Creek (Mendenhall, 1902). Chicago Creek is an east tributary to Kugruk river. The mouth of Chicago Creek on Kugruk River is 4,000 feet downstream of the Chicago Creek coal mine. This site is approximately located and is only known within one mile. It is locality 62 of Cobb (1972; MF 417; 1975; OFR 75-429).|
Geologic descriptionThis placer gold mine is reported to be on a bench near the mouth of Chicago Creek (Mendenhall, 1902) and some mining took place in 1906 (Brooks, 1907). The exact location and the nature of the deposit has not been described. Bedrock in the area is extensively covered by tundra but it is probably part of a Lower Paleozoic metasedimentary assemblage (Till and others, 1986). Tertiary coal-bearing sediments are locally exposed along Kugruk River upstream from Chicago Creek.
|Geologic map unit||(-162.456696680782, 65.9043164752159)|
|Mineral deposit model||Placer Au-PGE (Cox and Singer, 1986; model 39a)|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary|
|Workings or exploration||Some surface, open-cut placer workings are probably present.|
|Indication of production||Yes; small|
Brooks, A.H., 1907, The Alaskan mining industry in 1906: U.S. Geological Survey Bulletin 314-A, p. 19-39.
Cobb, E.H., 1972, Metallic mineral resources map of the Bendeleben quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-417, 1 sheet, scale 1:250,000.
Cobb, E.H., 1975, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Bendeleben quadrangle, Alaska: U.S. Geological Survey Open-File Report 75-429, 123 p.
Mendenhall, W.C., 1902, Reconnaissance from Fort Hamlin to Kotzebue Sound, Alaska, by way of Dall, Kanuti, Allen, and Kowak Rivers: U.S. Geological Survey Professional Paper 10, 68 p.
|Reporters||Travis L. Hudson (Applied Geology)|
|Last report date||3/15/1999|