The geology of Glencoe is so complex and varied that I almost dare not speak of it. It is famous for being the first recognised caldera volcano and my first thought on looking around was how? It is not obvious to the lay person that this landscape is a collapsed cauldron and the geological events that have occurred since, such as the movement of the land from the southern hemisphere to the north and the numerous collisions with continents that happened along the way, have deformed the circle and made it a mangled ellipse. The subsequent ice ages have sliced a deep valley through the caldera walls, further obscuring the landscape. The Glencoe mountain resort on the very eastern edge of the caldera, is maybe not the best place to appreciate the geology. On today’s route the West Highland Way heads down the glen, following the scrape of the glacier on its slide to the sea, until the route turns to climb the Devil’s Staircase. However the top of the Devil’s Staircase lies under the peak of