| Code | NA1323 |
| Place Entry | Trefforest/Llantwit Fardre/Glamorgan/Wales |
| Notes | Alternative spelling: Treforest |
| Place Name | Trefforest |
| Area2 | Llantwit Fardre |
| Area4 | Glamorgan |
| Area5 | Wales |
| Grid Ref | ST0888 |
| Notes | Alternative spelling: Treforest |
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