When the coal industry was nationalised in 1947, there were 8 collieries in Denbighshire; now there are none. The last pit to close was Bersham in 1986.
Special Rules of some of the Lancashire, Cheshire & North Wales Collieries 1855.
Collieries after Nationalisation in 1947
| Colliery | Location | Opened | Closed | |
|---|---|---|---|---|
| Bersham | Rhostyllen | 1869 | December | 1986 |
| Black Park | St Martins | 1855 | January | 1951 |
| Bryn-kinallt | St Martins | 1895 | November | 1968 |
| Gresford | Wrexham | 1907 | October | 1973 |
| Hafod | Ruabon | 1905 | 1967 | |
| Hafod-y-bwch | Ruabon | 1865 | March | 1968 |
| Llay Hall | Cefn-y-bedd | 1875 | November | 1949 |
| Llay Main | Llay | 1914 | March | 1966 |
Point of Aye Colliery (Flintshire)
The following pages refer to some of these mines in more detail:
- Index of articles published by the Northern Mine Research Society, complied by Alasdair Neill
- Denbighshire
