United States National Register of Historic Places |
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Empire Mine
| NRHP ID: 77000318 |
| NARA ID: 123860129 |
| Wikidata ID: Q5374101 |
| Wikpedia: Empire Mine State Historic Park |
| Location (in/near): Grass Valley, California |
| Constructed: 1975 |
| Listed: 1977-12-09 |
| Role: District |
| Significance region: State |
| Significance area(s): Architecture; Industry |
| Criteria: A (event); C (architecture/engineering) |
| Boundary change: Empire Mine Historic District (Boundary Increase) |
Data from United States Park Service and Wikidata