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Cripple Creek Mine, Fairbanks District, Fairbanks North Star Borough, Alaska, USA

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Latitude & Longitude (WGS84): 64° 49' 58'' North , 147° 59' 56'' West
Latitude & Longitude (decimal): 64.83278,-147.99889
Köppen climate type:Dfc : Subarctic climate


Location: The mining at the Cripple Creek mine covered about one square mile beneath and south-southeast of the town of Ester. The coordinates are the center of this dredge pond near the section line between sections 8 and 17, T. 1 S., R. 2 W., Fairbanks Meridian. The mine is locality 45 of Cobb (1972 [MF 410]).
Geology: Boswell (1979) described the Cripple Creek pay channel as an ancient channel of Ester Creek (FB034) which branched from the present course of Ester Creek roughtly opposite the mouth of Ready Bullion Creek. The auriferous gravels at Cripple Creek are very deep; they are overlain by several hundred feet of barren gravel and reworked loess or so-called muck that washed into valley from the surrounding hillsides. Beds of clay several feet thick were found at various elevations. Subsequent to deposition of the gravels there had been considerable faulting and tilting that has resulted in grades of 5 to 8 percent on the surface of the gravel as well as the bedrock The gravels vary in thickness from 60 to 167 feet; these are overlain by muck that varied in thickness from 100 to 187 feet. There was almost certainly deep, early drift mining on Cripple Creek in the early days of mining in the Fairbanks district but it was probably attributed to Ester Creek mine (FB034) or simply Ester. In the 1930, United States Smelting, Refining, and Mining Company (U.S.S.R.&M) consolidated most of the property in Ester and Cripple Creeks, and this was one of the major centers of placer mining in the Ester area until the dredges stopped mining in the late 1960's. U.S.S.R.&M. began extensive churn drilling on the Cripple Creek pay channel in 1933; they began stripping muck in May 1935 and barren gravel in September 1939. Dredge no. 10 started digging in August 1940 and, except for a closure during World War II, it continued on working Cripple Creek until 1964. It was the last dredge U.S.S.R.& M. operated in the Fairbanks area and remains in its pond south of Ester.
Workings: There was almost certainly deep drift mining on Cripple Creek in the early days of mining in the Fairbanks district, but it was probably attributed to Ester Creek mine (FB034) or simply Ester. In the 1930's, United States Smelting, Refining, and Mining Company (U.S.S.R.& M) consolidated most of the property in Ester and Cripple Creeks, and this was one of the major centers of placer mining in the Ester area until the dredges stopped mining in the late 1960's. U.S.S.R.&M. began extensive churn drilling on the Cripple Creek pay channel in 1933; they began stripping muck in May 1935 and barren gravel in September 1939. Dredge no. 10 started digging in August 1940 and, except for a closure during World War II, it continued on working Cripple Creek until 1964. It was the last dredge U.S.S.R.& M. operated in the Fairbanks area and remains in its pond south of Ester. Boswell (1979) provided considerable detail on dredging operations on Cripple Creek specifically.
Age: Quaternary placer.
Production: There is no record of the amount of gold produced by dredging on Cripple Creek but it was undoubtedly large. Dredge no. 10 was a large, modern dredge when it was constructed, and it operated every year from 1940 to 1964, except for two years during World War II.

Commodities (Major) - Au; (Minor) - Sn
Development Status: Yes; small
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a)


Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


2 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Holocene
0 - 0.0117 Ma



ID: 1647366
Water

Age: Anthropocene (0 - 0.0117 Ma)

Reference: Wilson, F.H., Hults, C.P., Mull, C.G, and Karl, S.M. (compilers). Geologic map of Alaska. doi: 10.3133/sim3340. U.S. Geological Survey Scientific Investigations Map 3340, pamphlet 196. [21]

Neogene
2.588 - 23.03 Ma



ID: 654001
Supracrustal; Sedimentary and/or volcanic: undivided

Age: Neogene (2.588 - 23.03 Ma)

Description: Interior western Alaska, Yukon-Koyukuk Basin

Comments: Sedimentary basin; Gordey & Makepeace, 2003; Wilson & Hults, unpublished compilation, 2007-08

Lithology: Sedimentary and/or volcanic rock: undivided

Reference: J.C. Harrison, M.R. St-Onge, O.V. Petrov, S.I. Strelnikov, B.G. Lopatin, F.H. Wilson, S. Tella, D. Paul, T. Lynds, S.P. Shokalsky, C.K. Hults, S. Bergman, H.F. Jepsen, and A. Solli. Geological map of the Arctic. doi:10.4095/287868. Geological Survey of Canada Map 2159A. [2]

Paleozoic - Precambrian
252.17 - 4000 Ma



ID: 3189253
Precambrian-Phanerozoic crystalline metamorphic rocks

Age: Eoarchean to Permian (252.17 - 4000 Ma)

Lithology: Crystalline metamorphic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Boswell, J.C., 1979, History of Alaskan operations of United States Smelting, Refining and Mining Company: Mineral Industry Research Laboratory, University of Alaska, 126 p. Brooks, A.H., 1907, The Alaskan mining industry in 1906: U.S. Geological Survey Bulletin 314-A, p. 19-39. Brooks, A.H., 1908, The mining industry in 1907: U.S. Geological Survey Bulletin 345-A, p. 30-53. Chapin, Theodore, 1914, Placer mining in the Yukon-Tanana region: U.S. Geological Survey Bulletin 592-J, p. 357-362. 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. 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. Ellsworth, C.E., 1910, Placer mining in the Yukon-Tanana region: U.S. Geological Survey Bulletin 442-F, p. 230-245. Ellsworth, C.E., 1912, Placer mining in the Fairbanks and Circle Disctricts: U.S. Geological Survey Bulletin 520-H, p. 240-245. Ellsworth, C.E., and Davenport, R.W., 1913, Placer mining in the Yukon-Tanana region: U.S. Geological Survey Bulletin 542-F, p. 203-222. Joesting, H.R., 1942, Strategic mineral occurences in interior Alaska: Alaska Territorial Department of Mines Pamphlet 1, 46 p. 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. Prindle, L.M., and Katz, F.J., 1913, Detailed description of the Fairbanks district, in Prindle, L.M., A geologic reconnaissance of the Fairbanks quadrangle, Alaska: U.S. Geological Survey Bulletin 525, p. 59-152. Smith, P.S., 1938, Mineral industry of Alaska in 1936: U.S. Geological Survey Bulletin 897-A, p. 1-107. Smith, P.S., 1939, Mineral industry of Alaska in 1937: U.S. Geological Survey Bulletin 910-A, p. 1-113. Smith, P.S., 1939, Mineral industry of Alaska in 1938: U.S. Geological Survey Bulletin 917-A, p. 1-113. Smith, P.S., 1941, Mineral industry of Alaska in 1939: U.S. Geological Survey Bulletin 926-A, p. 1-106. Smith, P.S., 1942, Mineral industry of Alaska in 1940: U.S. Geological Survey Bulletin 933-A, p. 1-102.

 
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