MineArchiveCarlton Iron Co.
The ironmasters who took the Mainsforth lease about 1894, re-excavated and dewatered the abandoned shafts and deepened them to the Harvey seam.
Mines operated
| Mine | Region | Years |
|---|---|---|
| East Howle Colliery | County Durham | ?–1905 |
| Mainsforth Colliery | County Durham | 1894–1923 |
Record created: 9 September 2026 · Last researched: 9 September 2026