Twyn Simon
Coal Mine
                    Worked until c1945
                
                Jan 1st, 2024 from WCM by Buddle-Bot
| South Wales | |
| Sirhowy Valley | |
| 51.700014, -3.182111 | |
| SO 1840 0080 | |
| Private Land | |
| 260m | |
| #2,923 | 
 Manmoel Level 1 - 3m Manmoel Level 1 - 3m
 Manmoel Level 2 - 25m Manmoel Level 2 - 25m
 Llanover - 511m Llanover - 511m
 Manmoel Colliery - 982m Manmoel Colliery - 982m
 Cwrt-y-Bella Colliery - 1,007m Cwrt-y-Bella Colliery - 1,007m
 Gwrhay Colliery - 1,022m Gwrhay Colliery - 1,022m
 Rhoswen Colliery Old - 1,044m Rhoswen Colliery Old - 1,044m
 Manmoel Level 3 - 1,074m Manmoel Level 3 - 1,074m
 Rhoswen Colliery New - 1,302m Rhoswen Colliery New - 1,302m
 Green Tree Level - 1,306m Green Tree Level - 1,306m
 Islwyn - 1,602m Islwyn - 1,602m
 Waterloo Colliery No 3 - 1,748m Waterloo Colliery No 3 - 1,748m
 Pen y Coedcae Colliery - 1,749m Pen y Coedcae Colliery - 1,749m
 Cherry Tree Level - 1,802m Cherry Tree Level - 1,802m
 Oakdale - 1,824m Oakdale - 1,824m
 Waterloo Colliery No 4 - 1,827m Waterloo Colliery No 4 - 1,827m
 Waterloo Colliery - 1,835m Waterloo Colliery - 1,835m
 Waterloo Colliery No 2 - 1,839m Waterloo Colliery No 2 - 1,839m
 Waterloo Colliery No 1 - 1,845m Waterloo Colliery No 1 - 1,845m
 
        