French Gulch Prospect, Bonnifield District, Denali Borough, Alaska, USA
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Geology: French Gulch drains the Tertiary Nenana Gravel, which locally contains gold paleoplacers. The source of the placer gold in French Gulch probably results from reworking the Nenana Gravel.
Workings: Surface only.
Production: One of the limiting factors for mining here was the lack of water.
Commodities (Major) - Au
Development Status: Undetermined.
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a)
1 entry listed. 1 valid mineral.
The above list 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.
Brooks, A.H., 1915, Mineral resources of Alaska; report on progress of investigations in 1914: U.S. Geological Survey Bulletin 622, 380 p. Clark, A.L., and Cobb, E.H., 1972, Metallic mineral resources map of the Healy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-394, 1 sheet, scale 1:250,000. Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Healy quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-1062, 113 p. Maddren, A.G., 1918, Gold placers near the Nenana coal field: U.S. Geological Survey Bulletin 662-G, p. 363-402. Wahrhaftig, Clyde, 1970, Geologic map of the Healy D-4 quadrangle: U.S. Geological Survey Geologic Quadrangle Map GQ-806, scale 1:63,360.