Bowman Mine (Boman), Grizzly Gulch, Pike Mining District, Sierra County, California, USAi
| Regional Level Types | |
|---|---|
| Bowman Mine (Boman) | Mine |
| Grizzly Gulch | Gulch |
| Pike Mining District | Mining District |
| Sierra County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
39° 26' 41'' North , 120° 56' 39'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Pike | 134 (2011) | 4.7km |
| Camptonville | 158 (2011) | 9.0km |
| Washington | 185 (2011) | 15.7km |
| North San Juan | 269 (2011) | 16.1km |
| Downieville | 282 (2011) | 16.2km |
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 |
|---|---|---|
| Nevada County Gem & Mineral Society | Grass Valley, California | 27km |
A former Au-Ag occurrence/mine located in the NE¼NE¼ sec. 10, T18N, R9E, MDM, 2.5 km (1.6 miles) ESE of Grizzly Gulch (townsite), about 2.5 km ENE of Pike, along the W ridge of Grouse Creek (6 miles WSW of Alleghany), on National Forest land. MRDS database stated accuracy for this location is 100 meters.
Mineralization is a vein deposit. The quartz vein strikes N30-40W in highly weathered metamorphic rocks. Local rocks include Paleozoic marine rocks, undivided, unit 6 (Northwestern Sierra Nevada).
Workings include surface openings comprised of a 1,200 foot trench.
Production data are found in: U. S. Bureau of Mines Minerals Yearbook for 1944 (1945), Volume 3.
Production statistics: Year: 1944: Ore (accurate): ^0.33 ounce (9 grams)/ton Au; 0.038 ounce (1 gram)/ton Ag.
For 180 tons of ore, 60 ounces Au and 7 ounces Ag were extracted in 1944. No other production record was found. Production in 1944 was small.
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: | 10086504 |
|---|
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 #0060910016
