What is recorded here
Porthyrysgaw is a coastal rock feature on the Isle of Anglesey, composed primarily of Silurian greywacke and slates, formed around 440–420 million years ago through deep-sea sedimentation and subsequent tectonic compression. It is notable for its exposure of ancient Welsh Basin rocks that form part of the island’s extensive and geologically significant Ordovician and Silurian sequences.
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Places near here
Porth EilianBay · 142 yd
Lynas Head Lighthouse, Llaneilian; Elianus Point Lighthouse; Point Lynas LighthouseLighthouse · 492 yd
Point Lynas LighthouseLighthouse · 510 yd
Porth y CorwglLanding Point · 549 yd
Freshwater BayBay · 1077 yd
Mynydd EilianMountain / peak · 1555 yd
Sail Loft, Iard Newydd, AmlwchSail Loft · 1.7 mi
Penysarn War MemorialMemorial · 1.9 mi
East MouseIslet · 2.2 mi
Ynys DulasIsland · 2.3 mi
Traeth Dulas, Hulk / WreckWreck · 2.7 mi
Amlwch, CemeteryCemetery · 2.9 mi