Windfall Creek Mine, Juneau Mining District, Juneau, Alaska, USAi
| Regional Level Types | |
|---|---|
| Windfall Creek Mine | Mine |
| Juneau Mining District | Mining District |
| Juneau | City Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
58° 29' 4'' North , 134° 42' 14'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Juneau | 32,756 (2017) | 26.2km |
Location: This placer mine is on Windfall Creek, 1 mile northwest of the divide between Windfall Creek and Montana Creek. It is at an elevation of approximately 500 feet, near the old Montana Creek trail, in the NE1/4NE1/4 section 20, T. 39 S., R. 65 E. of the Copper River Meridian. The location is accurate.
Geology: The Windfall Creek placer deposit was discovered in 1882 (Spencer, 1906) and has produced 249 ounces of gold (Redman and others, 1989). Old diversion ditches, water pipes and placer tailings lie along a 400-foot stretch of the creek. The mine area is underlain by black phyllite, felsic phyllite, greenschist, and greenstone. Gold-bearing quartz veins cut phyllite upstream near the head of Windfall Creek (JU103). The placer gravels that were worked lie in a small flat area, upstream from several small waterfalls emptying into Windfall Lake. There are abundant quartz fragments in the gravels, some with visible sulfides (Redman and others, 1989; Wells and others, 1986).
Workings: The Windfall Creek placer deposit was discovered in 1882 and has produced 249 ounces of gold. Old diversion ditches, water pipes, and placer tailings lie along a 400-foot stretch of the Creek.
Age: Quaternary.
Production: The Windfall Creek placer deposit was discovered in 1882 and has produced 249 ounces of gold.
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: | JU102 |
|---|
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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