Oak Mine (Evans Mine), Forest, Alleghany Mining District (Forest Mining District), Sierra County, California, USAi
| Regional Level Types | |
|---|---|
| Oak Mine (Evans Mine) | Mine |
| Forest | - 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° 29' 8'' North , 120° 52' 23'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Downieville | 282 (2011) | 9.1km |
| Pike | 134 (2011) | 11.9km |
| Washington | 185 (2011) | 15.4km |
| Camptonville | 158 (2011) | 15.5km |
| Sierra City | 221 (2011) | 22.4km |
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 | 34km |
A former lode Au occurrence/mine located in sec. 29, T19N, R10E, MDM, 1.8 km (1.1 miles) WSW of Forest, 2.3 km (1.4 miles) SE of Old Mountain House, and about 3.3 km (1.9 miles) NW of Alleghany, on the divide at the confluence of Oregon Creek and Lucky Dog Creek, on National Forest land. MRDS database stated accuracy for this location is 500 meters. East of the S workings of the Eureka. Adits driven on both sides of the creek. NOTE: Alternate geographic coordinates provided are: 39.4850006104 -120.87916564900002. These place the mine somewhat to the W, along the W side of Lucky Dog Creek.
Mineralization is a vein deposit hosted in gabbro and granite. The ore body strikes NW and dips NE. The vein may be continuous with the E branch of the Eureka vein. Many other small veins of irregular attitude but with mainly N strike, with dip. Gabbro is cut by small granite dikes which strike general N. In some of the smaller dikes are irregular vein-like segregated deposits of quartz that also contain a little chalcedony. Local rocks include Tertiary pyroclastic and volcanic mudflow deposits, unit 9 (Cascade Range).
Workings include underground openings comprised of an adit(s).
Mineralization is a vein deposit hosted in gabbro and granite. The ore body strikes NW and dips NE. The vein may be continuous with the E branch of the Eureka vein. Many other small veins of irregular attitude but with mainly N strike, with dip. Gabbro is cut by small granite dikes which strike general N. In some of the smaller dikes are irregular vein-like segregated deposits of quartz that also contain a little chalcedony. Local rocks include Tertiary pyroclastic and volcanic mudflow deposits, unit 9 (Cascade Range).
Workings include underground openings comprised of an adit(s).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Native Gold Formula: Au |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Quartz var. Chalcedony 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 var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Quartz | SiO2 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
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 #0060910241
