Sources & method
Quarry records
Historical permits
1 historical record matches
Historical permits can outlive a stone’s original supply route.
73 historical records are kept separately from the 813 records in the main register. A stone may still be available from stock or another permitted operation; confirm the current source with the producer.
| MSHA ID | Quarry / operation | Operator | State | Status | Employees | Materials |
|---|---|---|---|---|---|---|
| Mt Airy Mine And MillStone NEC | The N. C. Granite Corp | NC | AbandonedSince 08/29/2025 | — |