Small level.
Gwndwngwyn Colliery
Coal Mine
Worked from 1943 to c1971
Jan 1st, 2024 from NMRS by Buddle-Bot![]()
| South Wales | |
| Amman Valley | |
| 51.78855, -3.902158 | |
| SN 6890 1170 | |
| Private Land | |
| 250m | |
| #2,585 |
Grenig Colliery - 598m
Twyn y Bryn Colliery - 798m
Garnant Colliery - 999m
Trigloyn Colliery - 1,117m
Blaen Grennig - 1,428m
Godrewain Colliery - 1,498m
Pencraig Colliery - 1,745m
Cwmgorse - 1,926m
Graigddu No.2 - 1,936m
Glantref - 1,937m
Noyadd Colliery - 1,939m
Gelliciedrim - 1,959m
Cwm yr Onen Colliery - 1,970m
Buckland Pit - 1,976m