San Pedro claim, Eagle Peak, Clayton, Contra Costa County, California, USAi
| Regional Level Types | |
|---|---|
| San Pedro claim | Claim |
| Eagle Peak | Peak |
| Clayton | City |
| Contra Costa County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 54' 20'' North , 121° 56' 3'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Clayton | 11,867 (2017) | 3.9km |
| North Gate | 679 (2017) | 5.6km |
| Diablo | 1,158 (2011) | 8.1km |
| Blackhawk | 9,354 (2011) | 9.7km |
| Alamo | 14,570 (2011) | 10.6km |
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 |
|---|---|---|
| Contra Costa Mineral & Gem Society | Concord, California | 12km |
| Antioch Lapidary Club | Antioch, California | 16km |
| Northern California Geological Society | Orinda, California | 22km |
| Livermore Valley Lithophiles | Livermore, California | 29km |
| East Bay Mineral and Lapidary Club | Hayward, California | 29km |
A former Au-Ag-Cu occurrence/mine located in the SW¼SE¼NE¼ sec. 26, T1N, R1W, MDM, 0.5 km (0.3 mile; 1,600 feet) NNE of Eagle Peak (coordinates of record), on the NE slope of the mountain, on state owned land (Mount Diablo State Park). MRDS database stated accuracy for this location is 100 meters.
Cu & Fe oxide minerals occur in brecciated diabase. Local rocks include Mesozoic volcanic rocks, unit 1 (Coast Ranges).
Workings include underground openings comprised of 80 feet of drifts and crosscuts plus a 22 foot deep winze.
production information: 30 tons of ore with a content of 40% sulfides were mined in the winze and milled at North Beach, San Francisco.
Some assays were at $40-$45 (period values) Au + Ag/ton.
Commodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramList of minerals for each chemical element
Other Databases
| Link to USGS MRDS: | 10029570 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Coast MountainsMountain Range
North America PlateTectonic Plate
- California Coast RangesAccretionary Complex
- Franciscan DomainDomain
- Sonoma-Livermore BasinBasin
USA
- California
- Diablo RangeMountain Range
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