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Operated the Thornthwaite sett at its early-20th-century peak, reaching 85 fathoms depth by 1912 with about 90 men employed.
| Mine | Region | Years |
|---|---|---|
| Thornthwaite Mine | Cumbria | 1900–1920 |
Record created: 31 August 2026 · Last researched: 31 August 2026
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