Small mine.
Lletty Mawr Colliery
Coal Mine
Worked from c1903 to 1909
Jan 1st, 2024 from NMRS by Buddle-Bot![]()
| South Wales | |
| Near Llantrisant | |
| 51.676672, -3.752827 | |
| SS 7890 9900 | |
| Private Land | |
| 190m | |
| #2,654 |
Tor y Mynydd Colliery - 445m
Marine Colliery - 1,614m
Wenallt Merthyr - 1,654m