Twyn y Gaer
Twyn y Gaer is a mountain summit in the The Black Mountains to Chepstow region in the county of Monmouthshire [Sir Fynwy], Wales. Twyn y Gaer is 427 metres high with a prominence of 81 metres. The summit can be identified by: cairn on grassy mound Additional Notes: All the walks up Twyn y Gaer […]