E.A. Bacon placer mine (R. A. Bacon), Wallace, Camanche Mining District, Calaveras County, California, USAi
| Regional Level Types | |
|---|---|
| E.A. Bacon placer mine (R. A. Bacon) | Mine |
| Wallace | Census-designated Place |
| Camanche Mining District | Mining District |
| Calaveras County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
38° 12' 0'' North , 120° 57' 59'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Wallace | 403 (2011) | 1.2km |
| Camanche North Shore | 979 (2017) | 5.0km |
| Camanche Village | 847 (2011) | 7.8km |
| Dogtown | 2,506 (2011) | 10.8km |
| Buena Vista | 429 (2011) | 11.5km |
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 |
|---|---|---|
| Amador County Gem & Mineral Society | Sutter Creek, California | 26km |
| Stockton Lapidary & Mineral Club | Stockton, California | 39km |
| Calaveras Gem & Mineral Society | Angels Camp, California | 40km |
A former placer Au-Ag-Zr occurrence/hydraulic mine located in the SE¼ sec. 15, T4N, R9E, MDM, 1.2 km (0.8 mile) ENE of Wallace, along the San Joaquin County line. MRDS database stated accuracy for this location is 100 - 1,000 meters (2 USGS MRDS database files).
Local rocks include Miocene nonmarine rocks.
Mineralization is a placer Au deposit with gravel at 5 to 40 feet thick. Gravel contains 10% boulders and 20% clay. Zircon occurs in the sands at Wallace (concentration of 128 pounds of zircon per ton of black sand).
Production statistics: 4½ million (4,500,000) cubic yards of gravel were washed prior to 1932. 10,000 cubic yards were washed in the early 1940's, which recovered 286 ounces of Au and 14 ounces of Ag. Dredged by dragline in the late 1930's. Gravel was mined in 1941 by bulldozers. The washing plant was stationary.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Native Gold Formula: Au Description: Placer material. Somewhat argentiferous. |
| ⓘ Zircon Formula: Zr(SiO4) Description: Placer material contained in black sand fractions. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 9 - Silicates | |||
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Zircon | Zr(SiO4) |
| Si | Silicon | |
| Si | ⓘ Zircon | Zr(SiO4) |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS MRDS: | 10028575 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- California Central ValleyAccretionary Complex
- Great Valley BasinBasin
- Great Valley DomainDomain
- Sacramento BasinBasin
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