American Bar Mine (American Bar Quartz Mine), Sage Hill, Michigan Bluff Mining District (Michigan Bluff Mining deposit), Placer County, California, USAi
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Latitude & Longitude (WGS84):
39° 0' 46'' North , 120° 45' 17'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Foresthill | 1,483 (2011) | 5.5km |
| Georgetown | 2,367 (2011) | 13.8km |
| Colfax | 2,005 (2017) | 19.7km |
| Auburn Lake Trails | 3,426 (2011) | 20.3km |
| Alta | 610 (2011) | 22.1km |
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 |
|---|---|---|
| El Dorado County Mineral and Gem Society | Placerville, California | 32km |
| Gold Country Treasure Seekers | Placerville, California | 32km |
| Nevada County Gem & Mineral Society | Grass Valley, California | 35km |
Mindat Locality ID:
85019
Long-form identifier:
mindat:1:2:85019:8
GUID (UUID V4):
f0323193-f8bf-4432-8d67-295f5e2ee526
A former lode Au-Pb occurrence/mine located in the SW¼ (estimated) sec. 33, T14N, R11E, MDM, 2.2 km (1.4 miles) S of Sage Hill (coordinates of record) and about 3.8 km (2 miles) SSW of Michigan Bluff, W of Jackass Gulch, N of the American Bar area of the Middle Fork American River (on the N wall of the canyon), on private land within a National Forest area. Operated during the period 1923 to 1925 and later operated during the period 1934 to 1935. MRDS database stated accuracy for this location is 100 meters.
Mineralization is a vein deposit hosted in slate and Pennsylvanian diorite. The ore body strikes NE and dips SE at a thickness of 0.91 meter. The dikes contain much pyrite and weather rusty red. The veins are 1 to 3 feet thick. Local rocks include Paleozoic marine rocks, undivided, unit 4 (Western Sierra Nevada).
Workings include underground openings with a length of 594.36 meters and an overall depth of 85.34 meters and comprised of a shaft, tunnel and adits.
Production data are found in: Logan, Clarence August (1936).
Production statistics: Year: 1925 (period = 1923 to 1925): ^0.5 ounce (14 grams) Au/ton. The sulfide is reportedly low-grade.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Galena Formula: PbS |
| ⓘ Gold Formula: Au |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | 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 | ⓘ Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10034852 |
|---|
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References
