United States National Register of Historic Places |
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Longyear, E. J., First Diamond Drill Site
| NRHP ID: 77001526 |
| NARA ID: 93203001 |
| Wikidata ID: Q60749517 |
| Wikpedia: Longyear Drill Site |
| Location (in/near): Hoyt Lake, Minnesota |
| Listed: 1977-07-20 |
| Role: Structure |
| Significance region: State |
| Significance area(s): Engineering; Industry |
| Criteria: A (event); C (architecture/engineering) |
Data from United States Park Service and Wikidata