Nugget Gulch Mine, Southeast Fairbanks Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Nugget Gulch Mine | Mine |
| Southeast Fairbanks Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
64° 15' 46'' North , 141° 12' 25'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Location: Nugget Gulch is a small tributary of the Fortymile River located about 6 miles west of the Canadian border and about 2.5 miles east of Steele Creek. Most of the gold found in Nugget Gulch was in the portion of the creek valley that cuts the benches along the Fortymile River, in about the center of section 33, T. 7 S., R. 33 E., of the Fairbanks Meridian. The location is accurate. Nugget Gulch is locality 45 of Burleigh and Lear (1994), locality 47 of Eberlein and others (1977), and locality 63 of Cobb (1972 [MF-393]).
Geology: The rocks in the vicinity of Nugget Gulch are Paleozoic biotite gneiss and amphibolite (Foster, 1976). In the headwaters of Nugget Gulch, Paleozoic or Mesozoic metagabbro is present. Extensive terrace gravel deposits as high as several hundred feet above the Fortymile River occur on both sides of the lower portion of the river, including near the mouth of Nugget Gulch (Foster and Keith, 1968). Most of the gold found in Nugget Gulch was in the portion that cuts the terraces and was perhaps reconcentrated from them (Prindle, 1909). Nugget Gulch was considered a rich stream for its length (Powers, 1935). There has been placer gold production on the lower Fortymile River (EA071) near the mouth of Nugget Gulch. Gold was produced from Nugget Gulch in commercial quantities in the 1890's (Brooks, 1900). Several hundred ounces of gold were produced from Nugget Gulch in the late 1800's and early 1900's (Eberlein and others, 1977).
Workings: Gold was produced from Nugget Gulch in commercial quantities in the 1890's (Brooks, 1900).
Age: Quaternary.
Production: Several hundred ounces of gold were produced from Nugget Gulch in the late 1800's and early 1900's (Eberlein and others, 1977).
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 ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
1 valid mineral.
Gallery:
Other Databases
| Link to USGS - Alaska: | EA087 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Yukon-TananaVolcanic Arc
- Yukon-Tanana upper DomainDomain
USA
- Alaska
- Fortymile Mining DistrictMining District
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