Sarn Badrig (St Patrick's Causeway) moraine
A structure at Cantre'r Gwaelod (Lowland Hundred) – Welsh Sunken Land · 🇬🇧 United Kingdom
The structure
About Sarn Badrig (St Patrick's Causeway) moraine
Longest Sarn – 15 km shingle reef SW from Mochras Point (natural)