Excavation.
Publications (1)
- Richards, Alun John (1991); Gazeteer of the Welsh Slate Industry, A; Gwasg Carreg Gwalch 978-0863811968
Llwyn Onn
Slate Quarry
Jan 1st, 2024 from GWSI by Buddle-Bot
| North Wales | |
| Llangynog | |
| 52.8488567, -3.410268 | |
| SJ 0512 2886 | |
| Open Access | |
| 550m | |
| #1,742 |
Bwlch Gwyn - 951m- Moel Crynddyn - 1,448m
Cwm Orog - 1,564m
Nant y Dual - 1,934m