MineArchiveBlaenavon Company
The ironmaking company at the head of the Eastern Valley in Monmouthshire, whose coal and iron works included the Cinder Pits and whose ironworks and later Big Pit are now part of the Blaenavon Industrial Landscape World Heritage Site.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Cinder Pits | Torfaen | 1830–? |
| Forge Slope Colliery | Torfaen | 1900–1931 |
| Garn Colliery, Blaenavon | Torfaen | 1839–1947 |
| Kay's Slope | Torfaen | ?–1947 |
| Milfraen Colliery | Torfaen | ?–? |
Record created: 4 September 2026 · Last researched: 4 September 2026