Lookout Mine (Lookout prospect), Copper Hill, Green Mountain Mining District (Ben Hur Mining District), Mariposa County, California, USAi
| Regional Level Types | |
|---|---|
| Lookout Mine (Lookout prospect) | Mine |
| Copper Hill | Hill |
| Green Mountain Mining District (Ben Hur Mining District) | Mining District |
| Mariposa County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 16' 43'' North , 120° 1' 20'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Catheys Valley | 825 (2011) | 18.4km |
| Le Grand | 1,659 (2011) | 20.8km |
| Mariposa | 2,173 (2017) | 23.5km |
| Bootjack | 960 (2011) | 23.9km |
| Yosemite Lakes | 4,952 (2011) | 24.1km |
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 | 23km |
A former Cu occurrence/propsect/mine located in sec. 32, T7S, R18E, MDM, 2.3 km (7,500 feet) SE of Copper Hill (coordinates of record) (1¼ miles NW of the Green Mountain Forest Service lookout). MRDS database stated accuracy for this location is 100 meters.
NOTE: This locality is referred to as the Lookout prospect in the MRDS database files; however, on the topo map it is named the Lookout Mine. Based on the description in the MRDS files, it appears as if it were a mine with old workings, and most recently was being prospected (1956).
Mineralization is an oxidized copper ore deposit hosted in phyllite, amphibolite and schist. Local alteration was hydrothermal. Wall rocks adjacent to the shear zone are porous and thoroughly leached out by hydrothermal fluids. Local rocks include Jurassic marine rocks, unit 1 (Western Sierra Nevada and Western Klamath Mountains).
Workings include surface and underground openings comprised of 2 old shafts and cuts. The most recent working is a shallow shaft inclined 80E, supported by 8 inch stalls and entered by a chain ladder. Exploration work was being carried out intermittently in the summer of 1956.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 5 - Nitrates and Carbonates | |||
|---|---|---|---|
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Cu | Copper | |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
Other Databases
| Link to USGS MRDS: | 10030870 |
|---|
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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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0060430555
