MineArchiveDuke of Devonshire
The Cavendish family estate, which leased and consolidated Cononley's scattered small workings into a single larger mine from about 1842, developing it through an appointed agent.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Beever Mine | North Yorkshire | ?–? |
| Cononley Mine | North Yorkshire | 1842–1881 |
| Ecton Copper Mines | Staffordshire | 1760–1790 |
| Frankland Fold Mine | North Yorkshire | 1818–1853 |
| Goyt's Moss Colliery | Derbyshire | 1780–1893 |
| Grassington Moor Mines | North Yorkshire | 1792–1880 |
Record created: 1 September 2026 · Last researched: 1 September 2026