Pioneer Mine, Telegraph City, Foothill Copper Belt, Calaveras County, California, USAi
| Regional Level Types | |
|---|---|
| Pioneer Mine | Mine |
| Telegraph City | Unincorporated Community (Former) |
| Foothill Copper Belt | Belt |
| Calaveras County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 57' 14'' North , 120° 43' 25'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Copperopolis | 3,671 (2011) | 7.8km |
| East Oakdale | 2,762 (2011) | 19.7km |
| Angels Camp | 2,677 (2012) | 20.5km |
| Valley Home | 228 (2011) | 21.6km |
| Rancho Calaveras | 4,489 (2018) | 22.6km |
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 |
|---|---|---|
| Calaveras Gem & Mineral Society | Angels Camp, California | 21km |
| Mother Lode Mineral Society | Modesto, California | 42km |
| Amador County Gem & Mineral Society | Sutter Creek, California | 49km |
| Stockton Lapidary & Mineral Club | Stockton, California | 50km |
A former lode Au-Ag-Cu mine located in the NE¼ (estimated) sec. 11, T1N, R11E, MDM, 2.6 km (1.6 miles) NNE of Telegraph City, along Buckham Gulch, W of Boucher Mountain (4½ miles WSW of Copperopolis). MRDS database stated accuracy for this location is 100 meters.
NOTE: Geographic coordinates were adjusted to agree with the location reflected on the topo map (moved locality slightly E), at the secs. 11 & 12 boundary.
Mineralization is a vein deposit hosted in greenstone. The ore body strikes N and dips E and is comprised of a 3 foot (0.91 meter) thick quartz vein. Local alteration is kaolinization, pyritization. Local rocks include Mesozoic volcanic rocks, unit 2 (Western Sierra Foothills and Western Klamath Mountains).
Workings include underground openings with an overall depth of 18.29 meters and comprised of 2 shafts at 50 feet deep each and a 160 foot adit.
Production data are found in: Clark, Wm. B. & P.A. Lydon (1962).
Analytical data results: 5% sulfides.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| 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 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS MRDS: | 10028624 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Foothills-Wallowa DomainDomain
- Sierra Nevada BatholithVolcanic Arc
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