Location: The Hearst Creek mine is probably in sec. 4 or 5, T. 10 S., R. 3 W., Fairbanks Meridian. In 1905, placer mining took place approximately 2 miles above the mouth of Hearst Creek (Prindle, 1907, p. 211). The mine is locality 75 of Cobb (1972 [MF 410]).
Geology: In 1905, placer mining was reported (Prindle, 1907). Gold is found in the basal stream gravels and on the coal-bearing bedrock (Maddren, 1918). The creek begins in Nenana Gravel and cuts down into the underlying coal-bearing formation (Maddren, 1918).
Workings: In 1905, placer mining was reported (Prindle, 1907, p. 211).
Age: Quaternary placer.
Production: There is no information available of the amount of gold that was produced.

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

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

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

ⓘ Gold

Mineral List

ⓘ Gold

1 valid mineral.

Detailed Mineral List:

ⓘ Gold

Formula: Au

References:

(2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Gold	1.AA.05	Au

List of minerals for each chemical element

Au	Gold
Au	ⓘ Gold	Au

Other Databases

Link to USGS - Alaska:	FB146

Other Regions, Features and Areas containing this locality

North AmericaContinent

North America PlateTectonic Plate

Nenana BasinBasin
North America PlatformPassive Margin
Yukon-Tanana lower DomainDomain

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References

Brooks, A.H., 1911, The Mount McKinley region, Alaska, with descriptions of the igneous rocks and of the Bonnifield and Kantishna districts by L.M. Prindle: U.S. Geological Survey Professional Paper 70, 234 p. Capps, S.R., 1911, Mineral resources of the Bonnifield region: U.S. Geological Survey Bulletin 480-H, p. 218-235. Capps, S.R., 1912, The Bonnifield region, Alaska: U.S. Geological Survey Bulletin 501, 64 p., 1 sheet, scale 1:250,000. 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. Maddren, A.G., 1918, Gold placers near the Nenana coal field: U.S. Geological Survey Bulletin 662-G, p. 363-402. Prindle, L.M., 1907, The Bonnifield and Kantishna regions, Alaska: U.S. Geological Survey Bulletin 314-L, p. 205-226.

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