Roy Ex
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| Site Name : | Roy Ex |
| State : | California |
| County : | San Bernardino |
| Latitude : | 34.23447 |
| Longitude : | -116.67503 |
| Year Discovered : | |
| Years in Production : | 1938 - 1939 |
| Operation Type : | Unknown |
| Deposit Type : | |
| Production Size : | S |
| Development Status : | Past Producer |
| Primary Commodities : | Gold, Tungsten |
| Secondary Commodities : | |
| Other Commodities : |