Big Four Mine (Golden Oak), Garden Valley, Kelsey Mining District, El Dorado County, California, USAi
| Regional Level Types | |
|---|---|
| Big Four Mine (Golden Oak) | Mine |
| Garden Valley | Unincorporated Community |
| Kelsey Mining District | Mining District |
| El Dorado County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
38° 50' 37'' North , 120° 50' 56'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Coloma | 529 (2011) | 6.0km |
| Georgetown | 2,367 (2011) | 7.1km |
| Cold Springs | 446 (2011) | 11.5km |
| Auburn Lake Trails | 3,426 (2011) | 11.9km |
| Placerville | 10,650 (2017) | 13.4km |
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 |
|---|---|---|
| El Dorado County Mineral and Gem Society | Placerville, California | 13km |
| Gold Country Treasure Seekers | Placerville, California | 13km |
| Roseville Rock Rollers | Roseville, California | 39km |
| Nevada County Gem & Mineral Society | Grass Valley, California | 46km |
| Fossils for Fun Society, Inc. | North Highlands, California | 49km |
A former lode Au occurrence/mine located in the S½SW¼ sec. 34, T12N, R10E, MDM, 1.4 km (0.9 mile) SE of Garden Valley, on the divide between Little Sailor Creek and Irish Creek. Claim was comprised of 16 acres in a nearly square piece of land by agricultural patent, and adjoins the Isabel Mine on the E. Operated during the 1890's. Prospected in 1940. MRDS database stated accuracy for this location is 500 meters.
Mineralization is a vein deposit hosted in slate. The ore body strikes N10W and dips 55E at a thickness of 0.76 meter. The ore shoot is 75 feet. The value of the sulfides is not known. Local rocks include Jurassic marine rocks, unit 1 (Western Sierra Nevada and Western Klamath Mountains).
Workings include underground openings comprised of a 96 foot inclined shaft and a 100 foot drift.
Production data are found in: Logan, Clarence August (1934).
The ore yielded $10 to $13 (period values) Au/ton.
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: | 10007028 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Calaveras-Baker DomainDomain
- Sierra Nevada BatholithVolcanic Arc
USA
- California
- Mother Lode BeltBelt
- Sierra NevadaMountain Range
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060170605
