Snakehead claim (Jumbo claim; Snakebead [typo]), Casa Loma, Dutch Flat Mining District (Towle Mining District), Placer County, California, USAi
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Latitude & Longitude (WGS84):
39° 10' 59'' North , 120° 46' 37'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Alta | 610 (2011) | 3.9km |
| Dutch Flat | 160 (2011) | 5.8km |
| Colfax | 2,005 (2017) | 17.7km |
| Foresthill | 1,483 (2011) | 18.4km |
| Washington | 185 (2011) | 19.7km |
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 | 25km |
Mindat Locality ID:
85791
Long-form identifier:
mindat:1:2:85791:5
GUID (UUID V4):
e5c8fb36-dc7b-40b7-b227-cd664d543004
A former Cr occurrence/mine located in sec. 6, T15N, R11E, MDM, 1.9 km (1.2 miles) S of Casa Loma and 0.9 km (0.6 mile) NNE of Snakehead Point (opposite side of the river), at the NE corner of Green Valley, N of the North Fork American River, on private land within a National Forest area. Operated by R. E. Linder and D. J. Sullivan (1918). MRDS database stated accuracy for this location is 500 meters.
Mineralization is hosted in serpentinite. The ore body is podiform. Local rocks include ultramafic rocks, chiefly Mesozoic, unit 2 (Western Sierra Nevada and Klamath Mountains).
Workings include surface and underground openings comprised of an open cut and a 30 foot deep shaft.
Production data are found in: Rynearson, Garn Arthur (1953): 207.
Production statistics: Year: 1918 (Cr ore) (estimated): ^47% Cr2O3.
Analytical data results: 47% Cr2O3.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Chromite | 4.BB.05 | Fe2+Cr3+2O4 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Chromite | Fe2+Cr23+O4 |
| Cr | Chromium | |
| Cr | ⓘ Chromite | Fe2+Cr23+O4 |
| Fe | Iron | |
| Fe | ⓘ Chromite | Fe2+Cr23+O4 |
Other Databases
| Link to USGS MRDS: | 10077045 |
|---|
Other Regions, Features and Areas containing this locality
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060610623
