United States National Register of Historic Places |
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Aetna Earthworks
| NRHP ID: 73002157 |
| Wikidata ID: Q16974331 |
| Wikpedia: Aetna Earthworks |
| Location (in/near): Missaukee County, Michigan |
| Listed: 1973-03-30 |
| Role: Site |
| Significance region: Local |
| Significance area(s): Prehistoric |
| Criteria: D (information potential) |
Data from United States Park Service and Wikidata