Oro Bell Dredging Company placer (Chenoweth Dredger), Hidden Valley, Rocklin Mining District (Loomis Mining District), Placer County, California, USAi
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Latitude & Longitude (WGS84):
38° 44' 50'' North , 121° 11' 30'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Granite Bay | 20,402 (2011) | 3.0km |
| Rocklin | 61,213 (2017) | 6.2km |
| Folsom | 76,375 (2017) | 7.8km |
| Orangevale | 33,960 (2011) | 8.2km |
| Loomis | 6,733 (2017) | 8.2km |
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 |
|---|---|---|
| Roseville Rock Rollers | Roseville, California | 8km |
| Fossils for Fun Society, Inc. | North Highlands, California | 17km |
| Sacramento Valley Detecting Buffs | North Highlands, California | 17km |
| Sacramento Mineral Society | Sacramento, California | 32km |
| El Dorado County Mineral and Gem Society | Placerville, California | 34km |
A placer Au occurrence/mine located in sec. 2, T10N, R7E, MDM, 3.1 km (1.9 miles) SW of Hidden Valley, NNE of the Eureka Union School. Operated during the period 1934 to 1935. 900 acres were reported to be under lease in 1935. MRDS database stated accuracy for this location is 1,000 meters.
Mineralization is a placer Au deposit hosted in loose, sandy creek gravel lying on soft, decomposed granodiorite bedrock. Local rocks include Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges) and/or Eocene nonmarine rocks, unit 1 (Northern and Central California).
Workings included surface dredging operations. The dredger employed carried 76 buckets of 4 cubic feet capacity each. Originally depth capacity was 20 feet, but this was increased to 31 feet. The average depth of digging to April, 1935, was between 10 and 15 feet.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Native Gold Formula: Au Description: Placer material. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
List of minerals for each chemical element
| Au | Gold | |
|---|---|---|
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS MRDS: | 10109292 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- California Central ValleyAccretionary Complex
- Foothills-Wallowa DomainDomain
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060610022
