Mines in San Francisco County, California
8Total
1Active
San Francisco County, California has 8 mine and mineral deposit locations documented in federal records from the USGS Mineral Resources Data System and MSHA. 1 are currently active mining operations. The most commonly recorded commodity is sand and gravel, construction, with 3 sites.
By Status
Past Producer · 3Occurrence · 2Prospect · 1Active · 1Abandoned · 1
Top Commodities
Sand and Gravel, Construction · 3Construction Sand and Gravel · 2Mercury · 1Gold · 1
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Active Mines in San Francisco County
| Mine | Operator | Commodity | Type | Status |
|---|---|---|---|---|
| Pier 92 Marine Aggregate | Martin Marietta Northern California Aggregates LLC | Construction Sand and Gravel | Surface | Active |
All Mines in San Francisco County
| Mine | Commodity | Type | Status | Source |
|---|---|---|---|---|
| Pier 92 Marine Aggregate | Construction Sand and Gravel | Surface | Active | MSHA |
| Mining Claim Loc. Quicksilver Fnd. | Mercury | Prospect | MRDS | |
| Quarry | Sand and Gravel, Construction | Past Producer | MRDS | |
| Quarry | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| Quarry | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| San Francisco Sand | Construction Sand and Gravel | Surface | Abandoned | MSHA |
| Unnamed Location | Gold | Occurrence | MRDS | |
| Unnamed Occurrence | Occurrence | MRDS |