Duke of Portland
The Duke of Portland, recorded as owner of Black Close Colliery at North Seaton, near Ashington, an eighteenth-century colliery that closed in 1846.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Black Close Colliery | Northumberland | ?–? |
Record created: 23 October 2026 · Last researched: 23 October 2026