Stoc a’ Phriosain

Stoc a’ Phriosain is shown as a bay on the public map of Na h-Eileanan Siar. The saved point is the map point or the centre of its mapped shape.

Stoc a’ Phriosain is a coastal rock feature or sea cliff located in the Outer Hebrides, likely composed of Lewisian gneiss, one of the oldest rock formations in the UK, dating back over 2.7 billion years. These metamorphic rocks formed deep within the Earth's crust through intense heat and pressure, and are notable for their durability and the insight they provide into early Earth history.