Claim: Stac Fada Member is located 50 km along the coast of southwest Scotland and is a unit of the Stoer Group, also known as the Torridon Group.
Evidence: The Stac Fada Member is a distinctive layer towards the top of the Mesoproterozoic Bay of Stoer Formation, part of the Stoer Group (lowermost Torridonian Supergroup) in northwest Scotland.