Ancho Quartz Mine (Ancho Mine; Ancho claim; Erie claim; Ohio claim; Wheeling lode; Consolidaton of Ancho and Erie groups; Oliver and Holland; Dublin Bay Consolidated; Neuralgaline [Neuralgia] and Lane/Holland; Nevada; Wheeling; West Virginia; Nevada claim/Canton/Dandarine; Mc Carthy/Edison), Graniteville, Graniteville Mining District (Eureka Mining District), Nevada County, California, USAi
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Latitude & Longitude (WGS84):
39° 25' 9'' North , 120° 44' 55'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Washington | 185 (2011) | 7.9km |
| Downieville | 282 (2011) | 17.0km |
| Sierra City | 221 (2011) | 19.0km |
| Pike | 134 (2011) | 21.5km |
| Alta | 610 (2011) | 24.2km |
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 | 35km |
A former Au-Pb-Zn-Ag occurrence/mine located in secs. 16, 17, 20 & in the W½ (NW¼NW¼) sec. 21, T1N, R11E, MDM, 2.5 km (1.6 miles) SSW of Graniteville, on the divide between Poorman Creek and South Fork Poorman Creek (Erie Point), on private (patented) land within a National Forest area. MRDS database stated accuracy for this location is 500 meters. Original property comprised 10.94 acres (Erie & Ancho claims). This was later expanded to 80 acres and included the listed claims/mines.
Mineralization is a vein deposit hosted in rocks of the Blue Canyon Formation and the Tightner Formation (metasedimentary rocks, slate, granite). The ore body forms several shoots, one in the Ancho vein is 400 feet long and 5 to 30 feet thick. Two in the Dublin Bay at 70 to 100 feet long and 12 to 15 feet thick. The strike is W of N and the dip is 60-70E. Thickness is 15.24 meters. The Ancho claim has 4 veins averaging 4 feet thick. Two veins occur on the Erie claim. About ½ mile W the Blue Canyon Formation has a contact with granite. Meta-sediments are marine in nature. Local rocks include Paleozoic marine rocks, undivided, unit 4 (Western Sierra Nevada).
Workings include underground openings with a length of 731.52 meters and an overall depth of 152.4 meters, and comprised of crosscuts, adits, drifts and stopes.
Production data are found in: Averill, C.V., et al (1951); Logan, Clarence August (1941); and MacBoyle, Errol (1919).
Ore milled prior to 1930 yielded $3 to $6 (period values) Au/ton from the Ancho vein. Several million dollars in Au with Ag-Pb-Zn as by-products was realized from ore mined prior to 1948. Clark (1970a) places total output of this mine group at $1,000,000+.
Analytical data results: Ore assayed at $5 (period values) or more per ton.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
Mineral list contains entries from the region specified including sub-localities4 valid minerals.
Detailed Mineral List:
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native 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 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10007638 |
|---|
Localities in this Region
- California
- Nevada County
- Graniteville Mining District (Eureka Mining District)
- Graniteville
- Ancho Quartz Mine (Ancho Mine; Ancho claim; Erie claim; Ohio claim; Wheeling lode; Consolidaton of Ancho and Erie groups; Oliver and Holland; Dublin Bay Consolidated; Neuralgaline [Neuralgia] and Lane/Holland; Nevada; Wheeling; West Virginia; Nevada claim/Canton/Dandarine; Mc Carthy/Edison)
- Graniteville
- Graniteville Mining District (Eureka Mining District)
- Nevada County
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Calaveras-Baker 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 #0060570863
