Lost Cabin Mine (Woods Lake Mine), Black Butte, Alpine County, California, USAi
| Regional Level Types | |
|---|---|
| Lost Cabin Mine (Woods Lake Mine) | Mine |
| Black Butte | Table/Butte |
| Alpine County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
38° 40' 55'' North , 120° 0' 50'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Kirkwood | 158 (2011) | 5.6km |
| Alpine Village | 114 (2011) | 19.8km |
| Markleeville | 210 (2014) | 20.2km |
| Mesa Vista | 200 (2011) | 23.5km |
| Bear Valley | 121 (2011) | 24.3km |
A former lode Au-Cu-Pb-Ag mine located in the W½ sec. 28, T10N, R18E, MDM, 0.8 km (2,500 feet) ESE of Black Butte (coordinates of record), W of Woods Lake, on National Forest wilderness land (Mokelumne Wilderness). MRDS database stated accuracy for this location is 100 meters.
NOTE: MRDS database file #10187054 states: "Probably old Woods Lake Mine."
Mineralization is hosted in diorite and quartz diorite. The ore body strikes W and dips vertically. 2 veins a few feet apart with vertical dip. A third vein is flat-dipping, associated with fault gauge. The country rock ranges from medium-grained quartz dioritte to hard, fine-grained diorite. Coarse-grained quartz diorite crops out to the N. There are abundant sulfides. Local rocks include Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges).
Workings include surface and underground openings comprised of a 700 fot adit, drifts and a shallow winze near the portal. The flat vein was also worked with an adit. The workings were partially accessible in 1965.
Production data are found in: Clark (1977).
production information
•MODERATE ACTIVITY IN 1920S AND 1930S. INTERMITTANTLY PROSPECTED SINCE THEN WITH LITTLE OR NO PRODUCTION.
Production statistics during the period 1932-1939 gave variable results: 3,383 grams/metric ton Ag; Cu at 5,336 grams/metric ton; Pb at 32,662 grams/metric ton; Au at 40 grams/metric ton; and (1939) Ag at 121 grams/metric ton with Cu at 4,303 grams/metric ton.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | 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 | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
Other Databases
| Link to USGS MRDS: | 10006807 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Mojave 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 ID #0060030006
Bramel, Hadley R., Heyl, George R., Cox, Manning W., Ransome, Alfred L., Eric, John H., Wyant, Donald G. (1948) Copper in California. Bulletin 144. California State Mining Bureau p.213
