Publications (1)
- (1922); BGS - Mineral Resources of GB (c1920s) Vol XX - Lead and Zinc: Cardiganshire & West Montogmeryshire; 242 pages
| Mid Wales | |
| Pont Rhyd y Groes | |
| 52.3449554, -3.8583601 | |
| SN 7350 7350 | |
| Private Land | |
| 220m | |
| #295 |
Lisburne - 1,355m- Tan y Llethr - 1,355m
- Lefel Fawr - 1,370m
Frongoch - 1,588m- Pant y Gwaith - 1,701m
- Logaulas - 1,966m