Champion I Mine, Coulterville, Coulterville Mining District, Mariposa County, California, USAi
| Regional Level Types | |
|---|---|
| Champion I Mine | Mine |
| Coulterville | - not defined - |
| Coulterville Mining District | Mining District |
| Mariposa County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 43' 37'' North , 120° 13' 2'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Coulterville | 201 (2011) | 2.5km |
| Greeley Hill | 915 (2011) | 7.9km |
| Groveland | 601 (2011) | 12.4km |
| Bear Valley | 125 (2011) | 19.6km |
| Chinese Camp | 126 (2011) | 24.8km |
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 | 35km |
| Calaveras Gem & Mineral Society | Angels Camp, California | 47km |
A former lode Au-Ag-Zn-Cu-Pb mine located in the SW¼ (estimated) sec. 28, and in the NW¼ (estimated) sec. 33, T2S, R16E, MDM, 2.5 km (8,400 feet) NW of Coulterville, along Blacks Creek, on private (patented) land. Discovered in 1855. Operated from 1878 to 1939. Property consists of 1 patented claim. Operated by Car Da Mining Co. and Adlaide M. Ray. MRDS database stated accuracy for this location is 500 meters.
Mineralization is a vein deposit hosted in serpentinite and greenstone. The ore body strikes N70W and dips 55NE at a thickness of 3.66 meters. Local rocks include ultramafic rocks, chiefly Mesozoic, unit 2 (Western Sierra Nevada and Klamath Mountains).
Workings include underground openings with an overall depth of 60.96 meters and comprised of a 440 foot shaft with 4 levels, a 200 foot exit (escape) shaft, 2,000 feet of drifts, crosscuts and raises.
Production data are found in: Bowen, O.E., Jr. & C.H. Gray, Jr. (1957).
Active intermittently during the period 1878-1939. From 1900 recorded production was $150,000 - $200,000 (period values). In the fall of 1910 one mill cleanup from 250 tons of ore milled yielded $14,800 (period values). About 1914 several thousand dollars worth of ore averaged $45/ton (period values). About $67,000 of Au and Ag (period values) were produced during the period 1936-1939. Idle since 1939.
The dumps contain large quantities of sulfide-impregnated wall rock which probably constitutes low-grade ore.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Ankerite Formula: Ca(Fe2+,Mg)(CO3)2 |
| ⓘ Galena Formula: PbS |
| ⓘ Gold Formula: Au |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| 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 |
| S | Sulfur | |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| Ca | Calcium | |
| Ca | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Fe | Iron | |
| Fe | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Fe | ⓘ Pyrite | FeS2 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10030839 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Calaveras-Baker 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 #0060430044
