What is recorded here
Siôn a Siân is a coastal rock feature located in Conwy, formed from Silurian-age volcanic and sedimentary rocks, around 440 to 420 million years old. It is notable for its geological significance as part of the region's ancient volcanic terrain and for being a named landmark on official maps.
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Places near here
TryfanMountain / peak · 7 yd
Adam and Eve, Stone Pillars, TryfanCommemorative Stone · 13 yd
The Col between Far South Peak and TryfanMountain or hill · 98 yd
Tryfan, MountainLandscape; Landscape; Landscape; Landscape · 139 yd
Waterfall on Nant BochlwydWaterfall · 905 yd
Tryfan Bach: SheepfoldSheep Fold · 1094 yd
Carneddau, Gwern Gof UchafFarmstead · 1425 yd
Glyder FachMountain / peak · 1458 yd
Clogwyn y TarwCliff · 1589 yd
Waterfall above Idwal CottageWaterfall · 1.0 mi
The Enormous Screes of Yr Ole Wen Tower Above Ogwen's OutfallCastle, fort or tower · 1.2 mi
YHA IdwalWood · 1.2 mi