United States National Register of Historic Places |
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Argo Tunnel and Mill
| NRHP ID: 78000836 |
| NARA ID: 84128598 |
| Wikidata ID: Q21589194 |
| Location (in/near): Idaho Springs, Colorado |
| Listed: 1978-01-31 |
| Role: District |
| Significance region: State |
| Significance area(s): Commerce; Industry |
| Criteria: A (event) |
Data from United States Park Service and Wikidata