First Basin Mine, Petersburg Mining District, Hoonah-Angoon Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| First Basin Mine | Mine |
| Petersburg Mining District | Mining District |
| Hoonah-Angoon Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
57° 35' 44'' North , 133° 19' 55'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Mindat Locality ID:
197470
Long-form identifier:
mindat:1:2:197470:9
GUID (UUID V4):
41a2364e-bfcd-415d-ae07-8d7f74290b47
Although placer claims along Spruce Creek were patented as early as 1900, the surrounding area is now part of the Chuck River Wilderness Area which is closed to prospecting and mining.
Location: Spruce Creek has been explored for placer gold for most of it length and some parts of it have been mined. Probably the most extensive workings are in what is called the 'First Basin', about one-quarter mile upstream from the mouth of Spruce Creek. The mine is about 0.3 mile north of the center of section 26, T. 49 S., R. 75 E.
Geology: Placer gold was discovered near Windham Bay in 1869, probably in Spruce Creek (Spencer, 1906; Kimble and others, 1984). There was placer mining intermittently on Spruce Creek until the 1950's but most of the production took before 1900 and in the early part of the 20th century. Most of the mining took place in what are called the First and Second Basins. There are no records but the total production from Spruce Creek is probably small. The First Basin is about a quarter mile from tidewater where a bedrock ridge dammed a considerable amount of auriferous gravel. The basin is probably of glacial origin and the basin was originally filled with more than 50 feet of coarse-grained gravel and boulders deposited over blue clay with marine fossils. A mine plant was installed in the First Basin in 1888 and considerable gravel was sluiced through a tunnel through the bedrock dam at the mouth of the basin. Small-scale mining probably continued intermittently for years and the claims in the First Basin were patented before 1900.
Workings: A mine plant was installed in the First Basin in 1888 and considerable gravel was sluiced through a tunnel through the bedrock dam at the mouth of the basin. Small scale mining probably continued intermittently for years and claims in First Basin were patented before 1900.
Age: Probably Quaternary.
Production: There are no records but the total production from Spruce Creek is probably small.
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.
Gallery:
Other Databases
| Link to USGS - Alaska: | SD036 |
|---|
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