Blue Gravel shaft, Grass Valley, Grass Valley Mining District, Nevada County, California, USAi
| Regional Level Types | |
|---|---|
| Blue Gravel shaft | Group of Shafts |
| Grass Valley | Valley |
| Grass Valley Mining District | Mining District |
| Nevada County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
39° 13' 40'' North , 121° 4' 37'' West
Latitude & Longitude (decimal):
Type:
Group of Shafts
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Grass Valley | 12,944 (2017) | 1.7km |
| Rough and Ready | 963 (2011) | 5.1km |
| Nevada City | 3,152 (2017) | 6.3km |
| Alta Sierra | 6,911 (2011) | 9.8km |
| Penn Valley | 1,621 (2011) | 10.4km |
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 | 2km |
| Sutter Buttes Gem & Mineral Society | Marysville, California | 45km |
Mindat Locality ID:
83883
Long-form identifier:
mindat:1:2:83883:1
GUID (UUID V4):
43dc4d3c-669a-4ee3-8a5a-6939b1142a2e
A reported placer Au occurrence located in the SE¼ sec. 21, T16N, R8E, MDM, about 2.2 km WNW of Grass Valley proper at Alta Hill, just NW of the St. Patrick Cemetery. MRDS database stated accuracy for this location is 500 meters. Approximately 100 feet W and 1,300 feet N of the SE¼ of the section.
Local rocks include Tertiary pyroclastic and volcanic mudflow deposits, unit 9 (Cascade Range).
Workings include underground openings comprised of a shaft (probably an old hydraulic working)
List of minerals for each chemical element
Other Databases
| Link to USGS MRDS: | 10031751 |
|---|
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 #0060570301
