Cleveland Mine (Gray Eagle), Loganville, Sierra City Mining District, Sierra County, California, USAi
| Regional Level Types | |
|---|---|
| Cleveland Mine (Gray Eagle) | Mine |
| Loganville | - not defined - |
| Sierra City Mining District | Mining District |
| Sierra County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
39° 33' 40'' North , 120° 42' 54'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Sierra City | 221 (2011) | 7.0km |
| Downieville | 282 (2011) | 9.6km |
| Plumas Eureka (historical) | 339 (2011) | 22.0km |
| Whitehawk | 113 (2011) | 22.6km |
| Valley Ranch | 109 (2011) | 23.4km |
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 | 48km |
A former lode Au occurrence/mine located in the NW¼ sec. 35, T20N, R11E, MDM, about 5 km W of Loganville, S of the North Yuba River (3½ miles W of Sierra City), on National Forst land. MRDS database stated accuracy for this location is 100 meters.
NOTE: The USGS MRDS database contains 2 sets of files for a Cleveland Mine in Sierra County. Both have "Gray Eagle" as an alternate name. The chances of this type of duplication of names is very unlikely and the other set of files probably apply to this locality in the Sierra City District. Clark (1970) lists the Cleveland Mine in the Sierra City District.
Mineralization is a vein deposit with ore shoots hosted in slate. The ore body is pinch-and-swell in form, strikes NW and dips 80NE. The vein contains ribbon quartz that swerlls to several feet. There are 2 ore shoots exposed for 200 feet in adit No. 1, 250 feet in adit No. 2, that is 100 feet vertically below No. 1, and 500 feet in adit No. 3, which is 280 feet vertically below No. 2. Local rocks include Paleozoic marine rocks, undivided, unit 4 (Western Sierra Nevada).
Workings include surface and underground openings with an overall depth of 115.82 meters, overall length of 1,371.6 meters and an overall width of 182.88 meters and comprised of a series of adits. Adit No. 3 is 2,580 feet long with a winze sunk 300 feet below adit No. 3.
Production data are found in: Logan, Clarence August (1929).
This mine was possibly worked in the late 1920's and early 1930's. No other production record was found.
Analytical data results: 5% pyrite.
NOTE: The USGS MRDS database contains 2 sets of files for a Cleveland Mine in Sierra County. Both have "Gray Eagle" as an alternate name. The chances of this type of duplication of names is very unlikely and the other set of files probably apply to this locality in the Sierra City District. Clark (1970) lists the Cleveland Mine in the Sierra City District.
Mineralization is a vein deposit with ore shoots hosted in slate. The ore body is pinch-and-swell in form, strikes NW and dips 80NE. The vein contains ribbon quartz that swerlls to several feet. There are 2 ore shoots exposed for 200 feet in adit No. 1, 250 feet in adit No. 2, that is 100 feet vertically below No. 1, and 500 feet in adit No. 3, which is 280 feet vertically below No. 2. Local rocks include Paleozoic marine rocks, undivided, unit 4 (Western Sierra Nevada).
Workings include surface and underground openings with an overall depth of 115.82 meters, overall length of 1,371.6 meters and an overall width of 182.88 meters and comprised of a series of adits. Adit No. 3 is 2,580 feet long with a winze sunk 300 feet below adit No. 3.
Production data are found in: Logan, Clarence August (1929).
This mine was possibly worked in the late 1920's and early 1930's. No other production record was found.
Analytical data results: 5% pyrite.
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: | 10077708 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Shoofly-Olds Ferry 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 #0060910456
