The mountains of Glencoe are built from some of the oldest sedimentary and volcanic strata in the world. They were subsequently moulded, sheared and repositioned by a geological event known as a ‘cauldron subsidence’ which took place 380 million years ago.
The effects of glaciation, and millions of years and many cycles of erosion have subsequently carved and worn the rocks away into the formation we know today.Glencoe is bounded on its northern side by the famous Aonach Eagach or ‘notched ridge’ - a pinnacled ridge linking three peaks over 3000 feet which stretches for over three miles.
Interesting Fact: Filming for the third Harry Potter film, Harry Potter and the Prisoner of Azkaban, took place on location in Glencoe in May and June 2003. Regular visitors to Clachaig Inn and Glencoe will spot a familiar looking backdrop in the film, and in subsequent Harry Potter films. Visitors to Clachaig during the early summer were quite taken aback to find Hagrid’s Hut, complete with pumpkin patch and smoking chimney, the sundial and the turreted gatehouse, and the Bridge to Nowhere sat neatly on the hillside above Clachaig.