East Hetton Collieries Ltd.
County Durham colliery company which took over Trimdon Grange in 1937, holding it until nationalisation in 1947. Named for the East Hetton (Kelloe) pit with which Trimdon Grange had been connected underground since the 1880s.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Trimdon Grange Colliery | County Durham | 1937–1947 |
Record created: 3 September 2026 · Last researched: 3 September 2026