Looking towards the mountains of Canisp and Suilven
The mountains on the skyline are remnants of reddish-brown Torridonian sandstone, capped by younger & harder white quartzite. Prolonged erosion of the sandstone has exposed a "fossil" landscape in the underlying grey Lewisian Gneiss of the foreground. These are the oldest rocks in Britain, dated in parts at around 3,000 million years. Map location