Red Ledge Consolidated Mine (South Yuba Mine; So. Yuba; Red Ledge Cons.), French Corral, French Corral Mining District, Nevada County, California, USAi
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Latitude & Longitude (WGS84):
39° 17' 41'' North , 121° 9' 12'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Rough and Ready | 963 (2011) | 7.3km |
| Lake Wildwood | 4,991 (2011) | 8.0km |
| North San Juan | 269 (2011) | 9.3km |
| Dobbins | 624 (2011) | 9.7km |
| Penn Valley | 1,621 (2011) | 11.4km |
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 | 12km |
| Sutter Buttes Gem & Mineral Society | Marysville, California | 41km |
| Feather River Lapidary & Mineral Society | Oroville, California | 42km |
A former Au-Ag-Cu mine located in sec. 35 & 36, T17N, R7E, MDM, 1.4 km (0.9 mile/5,400 feet) SSE of French Corral, N of the South Yuba River, on private (patented) land. The property comprises 107 acres of varying mineral types and extends into sec. 36. MRDS database stated accuracy for this location is 500 meters. Mine apparently renamed the South Yuba with 6 claims. MacBoyle locates this mine in R8E, later references; however, place it in R7E.
Mineralization is a vein deposit hosted in schist and granodiorite. The ore body strikes N45W and dips 60W. The veins are rich in Cu toward the hanging wall and TU (??) sulfur toward the footwall. The gossan is 500 feet wide in places. Local rocks include Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges).
Workings include underground openings with a length of 518.16 meters and comprised of 6 adits, tunnels and crosscuts.
Analytical data results: Estimated assays: 2.12% Cu; $3.34 (period values) Au for low-grade ore. $1.92 (period values) Au, Ag and 38.2% Cu for high-grade ore. Gossan values from $5 to $10 (period values) Au/ton.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Copper Formula: Cu |
| ⓘ Gold Formula: Au |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Copper | 1.AA.05 | Cu |
| ⓘ | Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| 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 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Copper | Cu |
| Au | Gold | |
| Au | ⓘ Gold | Au |
Other Databases
| Link to USGS MRDS: | 10007232 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Foothills-Wallowa 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 #0060570057
(1908, September) The Copper Resources of California. Bulletin 50. California State Mining Bureaup.200
