What is recorded here
Trwyn Dwmi / Porth y Pistyll is a sea cliff located in Gwynedd, formed from Silurian-age volcanic and sedimentary rocks, approximately 440 to 420 million years old. The feature is notable for its exposure of ancient volcanic sequences and associated sedimentary deposits, which contribute to the understanding of Wales' complex geological history.
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Places near here
Porth y Pistyll QuayQuay · 46 yd
Craig Cwlwm QuarryQuarry · 187 yd
Craig CwlwmMountain / peak · 189 yd
Hen BorthBay · 418 yd
Pen y CilMountain / peak · 741 yd
Cairn at the summit of Pen Y CilAncient tomb or cairn · 759 yd
Porth MeudwyBeach / strand · 881 yd
Ynys PiodCliff · 1069 yd
Cae CrinCottage · 1428 yd
Carreg DduIslet · 1577 yd
Porth SamddaiBeach / strand · 1.1 mi
Porth Y SwntMuseum · 1.3 miOther information
Photo: Eirian Evans · CC BY-SA 2.0