Boire Placer Mine, Railroad Flat, Railroad Flat Mining District, East Belt, Calaveras County, California, USAi
| Regional Level Types | |
|---|---|
| Boire Placer Mine | Mine |
| Railroad Flat | Census-designated Place |
| Railroad Flat Mining District | Mining District |
| East Belt | - not defined - |
| Calaveras County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
38° 20' 42'' North , 120° 30' 44'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Rail Road Flat | 475 (2015) | 0.2km |
| West Point | 674 (2011) | 6.2km |
| Pioneer | 1,094 (2011) | 11.0km |
| Red Corral | 1,413 (2017) | 11.0km |
| Buckhorn | 2,429 (2017) | 12.0km |
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 |
| Calaveras Gem & Mineral Society | Angels Camp, California | 31km |
| El Dorado County Mineral and Gem Society | Placerville, California | 49km |
| Gold Country Treasure Seekers | Placerville, California | 49km |
A former placer drift Au occurrence/mine located in the NE¼ sec. 26, T6N, R13E, MDM, 0/2 km (0.1 mile) N of Railroad Flat proper. Operated prior to 1900. 1,500 cubic yards of gravel were washed in 1900. Operated intermittently since April, 1932. Two men were employed. MRDS database stated accuracy for this location is 100 meters.
Mineralization is a placer Au deposit said to be located on the Fort Mountain paleochannel, on a bend in the channel. The gravel is loose and the Au is very fine and is accompanied by considerable black sand and some boulders. The bedrock is slate. Local rocks include Paleozoic marine rocks, undivided, unit 4 (Western Sierra Nevada) and/or Tertiary nonmarine rocks, undivided.
Workings include underground openings comprised of a 200 foot inclined shaft and drifts northward, up through the channel for about 400 feet.
Gravel said to average $1.50 per cubic yard (period values).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsGallery:
Other Databases
| Link to USGS MRDS: | 10109181 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Shoofly-Olds Ferry DomainDomain
- Sierra Nevada BatholithVolcanic Arc
USA
- Sierra NevadaMountain Range
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