Looking south down Glen Coe from the Devil’s Staircase (on the West Highland Way). The large mountain on the right is the distinctive Buachaille Etive Mòr. To the left, in the background, are Creise and Meall a’ Bhùiridh.
The rocks of Glen Coe are part of an ancient caldera, formed after the eruption of a supervolcano around 400 million years ago. During the last ice age, glacial retreat created the distinctive U-shaped valley that can be seen today.