Location: The Gagnon Creek placer gold mine is along Gagnon Creek, a tributary to Healy Creek. Placer workings extend upstream from the mouth of the creek, but most of the activity was from about 0.2 to 0.8 mile from its mouth. The map site is in sec. 9, T. 12 S., R. 6 W., of the Fairbanks Meridian. This is location 65 of Clark and Cobb (1972).
Geology: Gagnon Creek drains the Tertiary Nenana Gravel, which locally contains gold paleoplacers. The deposit at Gagnon Creek consists of well-sorted auriferous gravels at a depth of up to 5 feet, and having an average thickness of 2 feet. The placer gold in Gagnon Gulch probably results from reworking the Nenana Gravel.
Workings: Surface only.
Age: Quaternary.
Production: Approximately 194 ounces of gold was mined from 1913 to 1917 (Cobb, 1978 (OFR 78-1062).

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:	HE010

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

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.

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