Porter Mine, Horseshoe Bend Mountain, Coulterville, Coulterville Mining District, Mariposa County, California, USAi
| Regional Level Types | |
|---|---|
| Porter Mine | Mine |
| Horseshoe Bend Mountain | Mountain |
| Coulterville | - not defined - |
| Coulterville Mining District | Mining District |
| Mariposa County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 40' 37'' North , 120° 11' 57'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Coulterville | 201 (2011) | 3.7km |
| Greeley Hill | 915 (2011) | 9.7km |
| Bear Valley | 125 (2011) | 13.9km |
| Groveland | 601 (2011) | 18.2km |
| Snelling | 231 (2011) | 27.3km |
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 | 30km |
A former lode Au mine located in the NE¼ (?) sec. 14 & sec. 15 (?), T3S, R16E, MDM, 1.0 km (3,300 feet) ESE of Horseshoe Bend Mountain (coordinates of record), on the upper eastern slope of the mountain (3 miles SSE of Coulterville). Property was unpatented. MRDS database stated accuracy for this location is 1,000 meters.
Mineralization is a vein deposit with a vein 3 to 5 feet thick, hosted in slate. The ore body strikes NW and dips 20NE at a thickness of 1.52 meters. Local rocks include Mesozoic volcanic rocks, unit 2 (Western Sierra Foothills and Western Klamath Mountains).
Workings include underground openings with a length of 91.44 meters and an overall depth of 45.72 meters and comprised of an incline and a tunnel.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Native Gold Formula: Au |
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: | 10034739 |
|---|
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 #0060430606
