Dreadnaught Mine, Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USAi
| Regional Level Types | |
|---|---|
| Dreadnaught Mine | Mine |
| Alleghany | - not defined - |
| Alleghany Mining District (Forest Mining District) | Mining District |
| Sierra County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
39° 28' 22'' North , 120° 49' 32'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Downieville | 282 (2011) | 9.6km |
| Washington | 185 (2011) | 12.8km |
| Pike | 134 (2011) | 15.3km |
| Camptonville | 158 (2011) | 19.3km |
| Sierra City | 221 (2011) | 19.4km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Nevada County Gem & Mineral Society | Grass Valley, California | 35km |
A former lode Au occurrence/mine located in sec. 35, T19N, R10E, MDM, about 1.6 km (1 mile) E of Alleghany, along the N canyon wall of Kanaka Creek, adjacent to the Docile Mine, on private land within a National Forest area. MRDS database stated accuracy for this location is 100 meters. Adjoining mines are the Gold King and the Docile.
Mineralization is a vein deposit hosted in amphibolite, Late Permian schist, and serpentinite. The ore body strikes N and dips 60W. Two irregular quartz veins occur in shear zones. The schist is highly sheared at small angles to the original schistosity. The vein parallels the shear planes. Occasional quartz seams are discontinuous along the shears. Similar parallel vein crops out on the Seneca claim. Local rocks include undivided pre-Cenozoic metavolcanic rocks, unit 2 (undivided).
Workings include underground openings with an overall depth of 60.96 meters and comprised of several adits, winzes amounting to several hundred feet in all.
Production date are found in: McCulloch et al, (1964).
Total production to 1893 was $50,000 to $100,000 (period values).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Native Gold Formula: Au |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS MRDS: | 10086536 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Calaveras-Baker DomainDomain
- Sierra Nevada BatholithVolcanic Arc
USA
- Sierra NevadaMountain Range
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060910257
