The view looking east from the top of the Devil’s staircase is a vast panorama of mountains and valley.   I did say that from this point is might be possible to gather a better picture of the caldera and maybe, if you have a working knowledge of geology, it is possible to pick out the tell-tale features of a collapsed volcanic ring. However I can only take my hat off to the Victorian pioneers who came to this conclusion, when it would have been a lot easier to explain the whole process at some other site that hadn’t experienced further volcanic activity and then had glaciers crashing through the entire landscape, thereby obscuring the original structures.   Although this is the point where the original fracture occurred that caused the volcano, this is no longer the centre of the caldera, we are in fact on the northern edge. Looking east, the glacier crashed through the walls, flattening the caldera.  It rises up above the Glencoe mountain resort and then heads to St...

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 th...