| Code | NA834 |
| Place Entry | Merthyr Tydfil/Glamorgan/Wales |
| Notes | Ancient parish, civil parish, town, borough |
| Place Name | Merthyr Tydfil |
| Area4 | Glamorgan |
| Area5 | Wales |
| Grid Ref | SO0506 |
| Notes | Ancient parish, civil parish, town, borough |
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