Slate, Dimension Mines in California
35Total Sites
5Active
Slate, Dimension Mining in California
California has 35 slate, dimension-related mine and mineral deposit locations recorded in federal databases. Of these, 5 are currently active operations. Data comes from the USGS Mineral Resources Data System and MSHA Mine Safety and Health Administration records.
By County
| County | Sites |
|---|---|
| El Dorado County | 18 |
| Riverside County | 6 |
| Mariposa County | 5 |
| Monterey County | 3 |
| Calaveras County | 1 |
| San Bernardino County | 1 |
| Tuolumne County | 1 |
Slate, Dimension Mines
| Mine | County | Type | Status |
|---|---|---|---|
| Alta Slate Mine | El Dorado | Producer | |
| Lawerence L Zollars | Mariposa | Surface | Producer |
| Negro Hill Deposit | Mariposa | Producer | |
| Placerville Slate Products | El Dorado | Surface | Producer |
| Rainbow Slate Group | Riverside | Producer | |
| Belt of Slate | Calaveras | Occurrence | |
| Buck | El Dorado | Occurrence | |
| California Slate Quarry | El Dorado | Occurrence | |
| California Slate Quarry | El Dorado | Surface | Unknown |
| California-Bangor Slate Co. | El Dorado | Occurrence | |
| California-Bangor Slate Co. | El Dorado | Surface | Unknown |
| Chili Bar | El Dorado | Occurrence | |
| Cunningham Corp. | Mariposa | Occurrence | |
| El Dorado Slate Products Co. | El Dorado | Surface | Unknown |
| El Dorado Slate Products Co. Chadbourne | El Dorado | Occurrence | |
| Eureka Slate Quarry | El Dorado | Surface | Unknown |
| Eureka Slate Quarry Sierra Slate Corp. | El Dorado | Occurrence | |
| Landeker | El Dorado | Occurrence | |
| Landeker | El Dorado | Surface | Unknown |
| Losh | El Dorado | Occurrence | |
| Losh | El Dorado | Surface | Unknown |
| Machado | Monterey | Surface | Past Producer |
| Meadows | Monterey | Surface | Past Producer |
| Miles Creek Deposits | Mariposa | Underground | Unknown |
| Pacific Slate Co. | Mariposa | Occurrence | |
| Rainbow Slate Group | Riverside | Surface | Past Producer |
| Reported Occurence | Tuolumne | Occurrence | |
| Riverside Quarries Co. Deposit | Riverside | Surface | Past Producer |
| San Francisco Slate Co. | El Dorado | Occurrence | |
| San Francisco Slate Co. | El Dorado | Surface | Unknown |
| Stewart Quarry | Monterey | Surface | Past Producer |
| Unnamed Prospect | San Bernardino | Surface | Prospect |
| Unnamed Slate Quarry | Riverside | Surface | Past Producer |
| Unnamed Slate Quarry | Riverside | Surface | Past Producer |
| Wrench Slate Prospect | Riverside | Prospect |
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