MineArchiveJohn Taylor & Sons
Cornish mining engineering and management firm; formed the Minera Mining Company in 1848 and led the sites most intensive working phase.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Cwmsymlog Mine | Ceredigion | 1838–1882 |
| Drakewalls Mine | Cornwall | 1901–1901 |
| Erglodd Mine | Ceredigion | 1840–1849 |
| Frongoch Mine | Ceredigion | 1834–1878 |
| Minera Lead Mines | Wrexham | 1848–1875 |
| West Tolgus Mine | Cornwall | 1860–1884 |
| Wheal Grenville | Cornwall | 1855–1906 |