Small level.
Glantref
Coal Mine
Worked until 1976
Jan 1st, 2024 from NMRS by Buddle-Bot
| South Wales | |
| Glanamman | |
| 51.798057, -3.925763 | |
| SN 6730 1280 | |
| Private Land | |
| 150m | |
| #2,504 |
Pencraig Colliery - 223m- Brynlloi - 282m
- Nantcrenig Colliery - 399m
- Erw Colliery - 424m
- Glanamman - 582m
- Glangrennig Colliery - 631m
- Godrewain Colliery - 705m
- Graigddu No.2 - 761m
- Graigddu Colliery - 805m
- Gelliciedrim - 883m
- Raven Colliery - 921m
- Coedamman Colliery - 946m
- Duffryn Amman Colliery - 982m
- Ystrad Colliery - 1,233m
- Glynmoch Colliery - 1,300m
- Twyn y Bryn Colliery - 1,358m
- Trigloyn Colliery - 1,396m
- Blaen Grennig - 1,414m
- Grenig Colliery - 1,484m
- Bodyst Uchaf Colliery - 1,863m
- Abernant Farm Colliery - 1,909m
- Gwndwngwyn Colliery - 1,937m
- Royal Oak Colliery - 1,982m