Worked steam coal in Lowe and Middle Coal Measures at 60m depth.
| South Wales | |
| Merthyr Tydfil | |
| 51.7388229, -3.3809841 | |
| SO 0474 0536 | |
| Private Land | |
| 177m | |
| #28,281 |
Colliers Row Old Level - 568m- Colliers Row New Level - 571m
Glyndyrys - 695m- Cwmglo - 818m
- Lucy Thomas - 1,130m
- Coedcae Colliery - 1,135m
- Cwm Colliery - 1,147m
- Garw Pit - 1,431m
- Waunwyllt Colliery Old - 1,501m
- Abercanaid Colliery - 1,512m
- Clynmil Colliery No 2 Pit - 1,589m
- Clynmil Colliery No 1 Pit - 1,598m
- Clynmil Colliery Drift - 1,608m
- Merthyr Tydfil ironworks - 1,717m
- Cwmdu Colliery Main Drift - 1,836m
- Cwmdu Colliery Pit - 1,935m
- Waunwyllt Colliery New - 1,966m