United States National Register of Historic Places |
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Helfrich's Springs Grist Mill (Boundary Increase)
| NRHP ID: 99001288 |
| NARA ID: 71998716 |
| Location (in/near): Whitehall Township, Pennsylvania |
| Listed: 1999-10-28 |
| Role: Building |
| Significance region: Local |
| Significance area(s): Architecture; Industry |
Data from United States Park Service and Wikidata