Boulder Creek Mine, Juneau Mining District, Juneau, Alaska, USAi
| Regional Level Types | |
|---|---|
| Boulder Creek Mine | Mine |
| Juneau Mining District | Mining District |
| Juneau | City Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
57° 50' 0'' North , 133° 44' 31'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Location: A small amount of placer gold was produced in the early 1980's from what is locally called Boulder Creek. The placer is about 0.5 mile north of VABM 'Coke' which is shown on the 1:63,360-scale USGS topographic map. The mine is about about 0.5 mile southwest of the center of section 34, T. 46 S., R. 72 E.
Geology: Gold may have been discovered on what is locally called Boulder Creek as early as 1881 but it was apparently not mined until 1980, when a small cut was worked near the mouth of the creek with a tractor and sluice box (Redman and others, 1989). There is no record of the amount of production but it is probably small. The rocks in the area are mafic volcanic rocks and black phyllite, part of the Permian to Cretaceous metavolcanic unit of Gehrels and Berg (1992).
Workings: A small amount of placer gold was mined in 1980 with a tractor and sluice box.
Age: Quaternary.
Production: Some gold was produced in 1980 and perhaps for some years after.
Commodities (Major) - Au
Development Status: Yes; small
Deposit Model: Placer gold (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.
Detailed Mineral List:
| ⓘ Native Gold Formula: Au |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
List of minerals for each chemical element
| Au | Gold | |
|---|---|---|
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS - Alaska: | SD011 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Coast MountainsMountain Range
North America PlateTectonic Plate
- Taku DomainDomain
- Yukon-TananaVolcanic Arc
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