Two separate glaciers erode rock from either side creating this steep, narrow knife-edge ridge. If three or more glaciers start on the same mountain, they erode backwards towards each other ...

Many of us are familiar with Yr Wyddfa, Tryfan, the Carneddau and the knife edge ridge of Crib Goch. Moel Eilio may not be as well-known but that comes with some major benefits. It's a favourite ...