View north to Stac Fada from Clachtoll broch An Dùn

View northwards over the Bay of Stoer to Stac Fada from the Clachtoll broch An Dùn. Stac Fada (the rocky peninsula left of centre) is the type locality for the Stac Fada Formation, recently interpreted as a meteorite impact debris horizon, comparable with suevite from the much younger (Miocene, 15 Ma) Ries meteorite impact event in south Germany. The Stac Fada Formation lies within the Bay of Stoer Formation, mostly fluviatile sandstones and siltstones (Mesoproterozoic, c. 1200 Ma).