Sources & method
Quarry records
Historical mine records
3 historical records match
Historical mine records can outlive a stone’s original supply route.
76 historical records are kept separately from the 814 records in the main register. A stone may still be available from stock or another quarry operation; confirm the current source with the producer.
| MSHA ID | Quarry / operation | Operator | State | Status | Employees | Materials |
|---|---|---|---|---|---|---|
| Lake Superior Green Granite | Cold Spring Granite Company | MN | AbandonedSince 06/01/2026 | — | ||
| Rainbow Quarry Granite | Cold Spring Granite Company | MN | AbandonedSince 07/31/2026 | — | ||
| ROCKVILLE #1 QUARRYGranite | Cold Spring Granite Company | MN | AbandonedSince 09/13/2021 | — |