Crown Lead Mine, Buckhorn Peak, Bagby-Mariposa-Mount Bullion-Whitlock Mining District, Mariposa County, California, USAi
| Regional Level Types | |
|---|---|
| Crown Lead Mine | Mine |
| Buckhorn Peak | Peak |
| Bagby-Mariposa-Mount Bullion-Whitlock Mining District | Mining District |
| Mariposa County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 38' 18'' North , 120° 10' 0'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Coulterville | 201 (2011) | 8.5km |
| Bear Valley | 125 (2011) | 8.8km |
| Greeley Hill | 915 (2011) | 12.3km |
| Groveland | 601 (2011) | 23.0km |
| Catheys Valley | 825 (2011) | 23.7km |
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 |
|---|---|---|
| Mariposa Gem & Mineral Club | Mariposa, California | 25km |
A former lode Au mine located in the SE¼ sec. 26, NE corner sec. 35 & in the NW¼ sec. 36 (details estimated for each sec.), about 3 miles SW of Buckhorn Peak and about 5 miles S of Coulterville, along Scotch Gulch, near its confluence with the Merced River, on private (patented) land. Operated by Joseph and Emilie Kopf. MRDS database stated accuracy for this location is 1,000 meters. This locality is apparently inundated beneath the Scotch Gulch arm of Lake McClure (Exchequer Reservoir). Claim extends for more than 5,500 feet along a branch of the Mother Lode.
Mineralization is a quartz vein deposit hosted in serpentinite and slate. The ore body is a pinch and swell type body that strikes N45W and dips steeply NE at a thickness of 3.05 meters. The quartz vein is 3 to 10 feet thick on contact between a serpentine intrusion and slate of the Upper Jurassic Mariposa Formation.
Workings include underground openings with an overall length of 1,676.4 meters and comprised of a 50 foot inclined shaft and a tunnel of unknown length, now caved.
Operated at various times in conjunction with the Crown Peak and Red Bank or Stevenson group of claims. It had a long record of intermittent activity but only a small record of production. Idle.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
3 valid minerals.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Ankerite | 5.AB.10 | Ca(Fe2+,Mg)(CO3)2 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| O | Oxygen | |
| O | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| O | ⓘ Quartz | SiO2 |
| Mg | Magnesium | |
| Mg | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Ca | Calcium | |
| Ca | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Fe | Iron | |
| Fe | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
Other Databases
| Link to USGS MRDS: | 10030881 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Foothills-Wallowa DomainDomain
- Sierra Nevada BatholithVolcanic Arc
USA
- California
- Mother Lode BeltBelt
- Sierra NevadaMountain Range
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0060430216
